mirror of https://github.com/python/cpython
Properly qualify methods inherited from classes in other modules.
Fix so that docother() doesn't blow up.
Eliminate man() function since doc() and man() did nearly the same thing.
Various other code cleanup and refactoring to reduce duplication.
Simplify and rewrite freshimport() so modules are always up to date,
even within packages (where reload() doesn't work).
Add finalization callback to the server (so that if the server fails to
start for some reason, the main thread isn't left hanging).
This commit is contained in:
Ka-Ping Yee
parent
15d8927f7e
commit
9aa0d90947
282
Lib/pydoc.py
282
Lib/pydoc.py
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@ -66,7 +66,7 @@ def synopsis(filename, cache={}):
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result = split(module.__doc__ or '', '\n')[0]
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else: # text modules can be directly examined
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line = file.readline()
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while line[:1] == '#' or strip(line) == '':
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while line[:1] == '#' or not strip(line):
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line = file.readline()
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if not line: break
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line = strip(line)
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@ -125,8 +125,9 @@ def isconstant(object):
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def replace(text, *pairs):
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"""Do a series of global replacements on a string."""
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for old, new in pairs:
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text = join(split(text, old), new)
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while pairs:
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text = join(split(text, pairs[0]), pairs[1])
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pairs = pairs[2:]
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return text
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def cram(text, maxlen):
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@ -224,7 +225,7 @@ class HTMLRepr(Repr):
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self.maxstring = self.maxother = 100
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def escape(self, text):
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return replace(text, ('&', '&'), ('<', '<'), ('>', '>'))
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return replace(text, '&', '&', '<', '<', '>', '>')
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def repr(self, object):
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return Repr.repr(self, object)
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@ -239,7 +240,7 @@ class HTMLRepr(Repr):
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def repr_string(self, x, level):
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test = cram(x, self.maxstring)
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testrepr = repr(test)
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if '\\' in test and '\\' not in replace(testrepr, (r'\\', '')):
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if '\\' in test and '\\' not in replace(testrepr, r'\\', ''):
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# Backslashes are only literal in the string and are never
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# needed to make any special characters, so show a raw string.
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return 'r' + testrepr[0] + self.escape(test) + testrepr[0]
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@ -316,8 +317,8 @@ TT { font-family: lucida console, lucida typewriter, courier }
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def preformat(self, text):
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"""Format literal preformatted text."""
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text = self.escape(expandtabs(text))
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return replace(text, ('\n\n', '\n \n'), ('\n\n', '\n \n'),
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(' ', ' '), ('\n', '<br>\n'))
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return replace(text, '\n\n', '\n \n', '\n\n', '\n \n',
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' ', ' ', '\n', '<br>\n')
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def multicolumn(self, list, format, cols=4):
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"""Format a list of items into a multi-column list."""
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@ -343,9 +344,7 @@ TT { font-family: lucida console, lucida typewriter, courier }
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def classlink(self, object, modname, *dicts):
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"""Make a link for a class."""
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name = object.__name__
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if object.__module__ != modname:
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name = object.__module__ + '.' + name
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name = classname(object, modname)
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for dict in dicts:
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if dict.has_key(object):
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return '<a href="%s">%s</a>' % (dict[object], name)
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@ -425,7 +424,7 @@ TT { font-family: lucida console, lucida typewriter, courier }
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entry, modname, classes, c)
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return '<dl>\n%s</dl>\n' % result
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def docmodule(self, object, name=None):
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def docmodule(self, object, name=None, mod=None):
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"""Produce HTML documentation for a module object."""
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name = object.__name__ # ignore the passed-in name
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parts = split(name, '.')
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@ -509,13 +508,13 @@ TT { font-family: lucida console, lucida typewriter, courier }
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contents = [self.formattree(
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inspect.getclasstree(classlist, 1), name, cdict)]
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for key, value in classes:
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contents.append(self.document(value, key, fdict, cdict))
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contents.append(self.document(value, key, name, fdict, cdict))
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result = result + self.bigsection(
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'Classes', '#ffffff', '#ee77aa', join(contents))
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if funcs:
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contents = []
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for key, value in funcs:
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contents.append(self.document(value, key, fdict, cdict))
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contents.append(self.document(value, key, name, fdict, cdict))
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result = result + self.bigsection(
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'Functions', '#ffffff', '#eeaa77', join(contents))
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if constants:
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@ -535,21 +534,20 @@ TT { font-family: lucida console, lucida typewriter, courier }
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return result
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def docclass(self, object, name=None, funcs={}, classes={}):
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def docclass(self, object, name=None, mod=None, funcs={}, classes={}):
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"""Produce HTML documentation for a class object."""
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realname = object.__name__
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name = name or realname
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bases = object.__bases__
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contents = ''
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methods, mdict = [], {}
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for key, value in allmethods(object).items():
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methods.append((key, value))
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mdict[key] = mdict[value] = '#' + name + '-' + key
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methods, mdict = allmethods(object).items(), {}
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methods.sort()
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for key, value in methods:
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mdict[key] = mdict[value] = '#' + name + '-' + key
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for key, value in methods:
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contents = contents + self.document(
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value, key, funcs, classes, mdict, object)
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value, key, mod, funcs, classes, mdict, object)
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if name == realname:
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title = '<a name="%s">class <strong>%s</strong></a>' % (
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@ -573,7 +571,7 @@ TT { font-family: lucida console, lucida typewriter, courier }
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"""Format an argument default value as text."""
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return self.small(self.grey('=' + self.repr(object)))
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def docroutine(self, object, name=None,
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def docroutine(self, object, name=None, mod=None,
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funcs={}, classes={}, methods={}, cl=None):
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"""Produce HTML documentation for a function or method object."""
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realname = object.__name__
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@ -583,18 +581,16 @@ TT { font-family: lucida console, lucida typewriter, courier }
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skipdocs = 0
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if inspect.ismethod(object):
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if cl:
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if object.im_class is not cl:
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base = object.im_class
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url = '#%s-%s' % (base.__name__, name)
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basename = base.__name__
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if base.__module__ != cl.__module__:
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url = base.__module__ + '.html' + url
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basename = base.__module__ + '.' + basename
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note = ' from <a href="%s">%s</a>' % (url, basename)
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imclass = object.im_class
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if imclass is not cl:
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url = '%s.html#%s-%s' % (
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imclass.__module__, imclass.__name__, name)
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note = ' from <a href="%s">%s</a>' % (
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url, classname(imclass, mod))
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skipdocs = 1
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else:
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note = (object.im_self and
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' method of ' + self.repr(object.im_self) or
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' method of %s instance' + object.im_self.__class__ or
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' unbound %s method' % object.im_class.__name__)
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object = object.im_func
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@ -631,9 +627,10 @@ TT { font-family: lucida console, lucida typewriter, courier }
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doc = doc and '<dd>' + self.small('<tt>%s</tt>' % doc)
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return '<dl><dt>%s%s</dl>\n' % (decl, doc)
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def docother(self, object, name=None):
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def docother(self, object, name=None, mod=None):
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"""Produce HTML documentation for a data object."""
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return '<strong>%s</strong> = %s' % (name, self.repr(object))
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lhs = name and '<strong>%s</strong> = ' % name or ''
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return lhs + self.repr(object)
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def index(self, dir, shadowed=None):
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"""Generate an HTML index for a directory of modules."""
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@ -682,7 +679,7 @@ class TextRepr(Repr):
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def repr_string(self, x, level):
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test = cram(x, self.maxstring)
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testrepr = repr(test)
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if '\\' in test and '\\' not in replace(testrepr, (r'\\', '')):
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if '\\' in test and '\\' not in replace(testrepr, r'\\', ''):
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# Backslashes are only literal in the string and are never
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# needed to make any special characters, so show a raw string.
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return 'r' + testrepr[0] + test + testrepr[0]
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@ -736,7 +733,7 @@ class TextDoc(Doc):
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entry, modname, c, prefix + ' ')
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return result
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def docmodule(self, object, name=None):
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def docmodule(self, object, name=None, mod=None):
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"""Produce text documentation for a given module object."""
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name = object.__name__ # ignore the passed-in name
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synop, desc = splitdoc(getdoc(object))
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@ -780,19 +777,19 @@ class TextDoc(Doc):
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contents = [self.formattree(
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inspect.getclasstree(classlist, 1), name)]
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for key, value in classes:
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contents.append(self.document(value, key))
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contents.append(self.document(value, key, name))
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result = result + self.section('CLASSES', join(contents, '\n'))
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if funcs:
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contents = []
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for key, value in funcs:
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contents.append(self.document(value, key))
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contents.append(self.document(value, key, name))
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result = result + self.section('FUNCTIONS', join(contents, '\n'))
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if constants:
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contents = []
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for key, value in constants:
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contents.append(self.docother(value, key, 70))
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contents.append(self.docother(value, key, name, 70))
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result = result + self.section('CONSTANTS', join(contents, '\n'))
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if hasattr(object, '__version__'):
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@ -808,7 +805,7 @@ class TextDoc(Doc):
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result = result + self.section('CREDITS', str(object.__credits__))
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return result
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def docclass(self, object, name=None):
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def docclass(self, object, name=None, mod=None):
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"""Produce text documentation for a given class object."""
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realname = object.__name__
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name = name or realname
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@ -828,7 +825,7 @@ class TextDoc(Doc):
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methods = allmethods(object).items()
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methods.sort()
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for key, value in methods:
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contents = contents + '\n' + self.document(value, key, object)
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contents = contents + '\n' + self.document(value, key, mod, object)
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if not contents: return title + '\n'
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return title + '\n' + self.indent(rstrip(contents), ' | ') + '\n'
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@ -837,26 +834,22 @@ class TextDoc(Doc):
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"""Format an argument default value as text."""
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return '=' + self.repr(object)
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def docroutine(self, object, name=None, cl=None):
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def docroutine(self, object, name=None, mod=None, cl=None):
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"""Produce text documentation for a function or method object."""
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realname = object.__name__
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name = name or realname
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note = ''
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skipdocs = 0
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if inspect.ismethod(object):
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imclass = object.im_class
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if cl:
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if object.im_class is not cl:
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base = object.im_class
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basename = base.__name__
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if base.__module__ != cl.__module__:
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basename = base.__module__ + '.' + basename
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note = ' from %s' % basename
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if imclass is not cl:
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note = ' from ' + classname(imclass, mod)
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skipdocs = 1
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else:
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if object.im_self:
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note = ' method of %s' % self.repr(object.im_self)
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else:
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note = ' unbound %s method' % object.im_class.__name__
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note = (object.im_self and
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' method of %s instance' + object.im_self.__class__ or
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' unbound %s method' % classname(imclass, mod))
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object = object.im_func
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if name == realname:
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@ -883,14 +876,14 @@ class TextDoc(Doc):
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doc = getdoc(object) or ''
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return decl + '\n' + (doc and rstrip(self.indent(doc)) + '\n')
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def docother(self, object, name=None, maxlen=None):
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def docother(self, object, name=None, mod=None, maxlen=None):
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"""Produce text documentation for a data object."""
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repr = self.repr(object)
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if maxlen:
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line = name + ' = ' + repr
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line = (name and name + ' = ' or '') + repr
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chop = maxlen - len(line)
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if chop < 0: repr = repr[:chop] + '...'
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line = self.bold(name) + ' = ' + repr
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line = (name and self.bold(name) + ' = ' or '') + repr
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return line
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# --------------------------------------------------------- user interfaces
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@ -1017,95 +1010,83 @@ def describe(thing):
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return 'instance of ' + thing.__class__.__name__
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return type(thing).__name__
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def freshimport(name, cache={}):
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"""Import a module, reloading it if the source file has changed."""
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topmodule = __import__(name)
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module = None
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for component in split(name, '.'):
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if module == None:
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module = topmodule
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path = split(name, '.')[0]
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def freshimport(path, cache={}):
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"""Import a module freshly from disk, making sure it's up to date."""
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if sys.modules.has_key(path):
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# This is the only way to be sure. Checking the mtime of the file
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# isn't good enough (e.g. what if the module contains a class that
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# inherits from another module that has changed?).
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if path not in sys.builtin_module_names:
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del sys.modules[path]
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try:
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module = __import__(path)
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except:
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# Did the error occur before or after the module was found?
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(exc, value, tb) = info = sys.exc_info()
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if sys.modules.has_key(path):
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# An error occured while executing the imported module.
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raise ErrorDuringImport(sys.modules[path].__file__, info)
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elif exc is SyntaxError:
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# A SyntaxError occurred before we could execute the module.
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raise ErrorDuringImport(value.filename, info)
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elif exc is ImportError and \
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split(lower(str(value)))[:2] == ['no', 'module']:
|
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# The module was not found.
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return None
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else:
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module = getattr(module, component)
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path = path + '.' + component
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if hasattr(module, '__file__'):
|
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file = module.__file__
|
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if os.path.exists(file):
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info = (file, os.path.getmtime(file), os.path.getsize(file))
|
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if cache.get(path) == info:
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continue
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module = reload(module)
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file = module.__file__
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if os.path.exists(file):
|
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info = (file, os.path.getmtime(file), os.path.getsize(file))
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cache[path] = info
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# Some other error occurred during the importing process.
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raise ErrorDuringImport(path, sys.exc_info())
|
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for part in split(path, '.')[1:]:
|
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try: module = getattr(module, part)
|
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except AttributeError: return None
|
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return module
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|
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def locate(path):
|
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"""Locate an object by name (or dotted path), importing as necessary."""
|
||||
if not path: # special case: imp.find_module('') strangely succeeds
|
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return None
|
||||
if type(path) is not types.StringType:
|
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return path
|
||||
"""Locate an object by name or dotted path, importing as necessary."""
|
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parts = split(path, '.')
|
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n = len(parts)
|
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while n > 0:
|
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path = join(parts[:n], '.')
|
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try:
|
||||
module = freshimport(path)
|
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except:
|
||||
# Did the error occur before or after the module was found?
|
||||
(exc, value, tb) = info = sys.exc_info()
|
||||
if sys.modules.has_key(path):
|
||||
# An error occured while executing the imported module.
|
||||
raise ErrorDuringImport(sys.modules[path].__file__, info)
|
||||
elif exc is SyntaxError:
|
||||
# A SyntaxError occurred before we could execute the module.
|
||||
raise ErrorDuringImport(value.filename, info)
|
||||
elif exc is ImportError and \
|
||||
split(lower(str(value)))[:2] == ['no', 'module']:
|
||||
# The module was not found.
|
||||
n = n - 1
|
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continue
|
||||
else:
|
||||
# Some other error occurred before executing the module.
|
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raise ErrorDuringImport(path, sys.exc_info())
|
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try:
|
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x = module
|
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for p in parts[n:]:
|
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x = getattr(x, p)
|
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return x
|
||||
except AttributeError:
|
||||
n = n - 1
|
||||
continue
|
||||
if hasattr(__builtins__, path):
|
||||
return getattr(__builtins__, path)
|
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return None
|
||||
module, n = None, 0
|
||||
while n < len(parts):
|
||||
nextmodule = freshimport(join(parts[:n+1], '.'))
|
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if nextmodule: module, n = nextmodule, n + 1
|
||||
else: break
|
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if module:
|
||||
object = module
|
||||
for part in parts[n:]:
|
||||
try: object = getattr(object, part)
|
||||
except AttributeError: return None
|
||||
return object
|
||||
else:
|
||||
import __builtin__
|
||||
if hasattr(__builtin__, path):
|
||||
return getattr(__builtin__, path)
|
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|
||||
# --------------------------------------- interactive interpreter interface
|
||||
|
||||
text = TextDoc()
|
||||
html = HTMLDoc()
|
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|
||||
def doc(thing):
|
||||
"""Display documentation on an object (for interactive use)."""
|
||||
if type(thing) is type(""):
|
||||
def doc(thing, title='Python Library Documentation: '):
|
||||
"""Display text documentation, given an object or a path to an object."""
|
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suffix, name = '', None
|
||||
if type(thing) is type(''):
|
||||
try:
|
||||
object = locate(thing)
|
||||
except ErrorDuringImport, value:
|
||||
print value
|
||||
return
|
||||
if object:
|
||||
thing = object
|
||||
else:
|
||||
if not object:
|
||||
print 'no Python documentation found for %s' % repr(thing)
|
||||
return
|
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parts = split(thing, '.')
|
||||
if len(parts) > 1: suffix = ' in ' + join(parts[:-1], '.')
|
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name = parts[-1]
|
||||
thing = object
|
||||
|
||||
desc = describe(thing)
|
||||
module = inspect.getmodule(thing)
|
||||
if module and module is not thing:
|
||||
desc = desc + ' in module ' + module.__name__
|
||||
pager('Help on %s:\n\n' % desc + text.document(thing))
|
||||
if not suffix and module and module is not thing:
|
||||
suffix = ' in module ' + module.__name__
|
||||
pager(title + desc + suffix + '\n\n' + text.document(object, name))
|
||||
|
||||
def writedoc(key):
|
||||
"""Write HTML documentation to a file in the current directory."""
|
||||
|
|
@ -1154,25 +1135,13 @@ help(module) or call help('modulename').''' % sys.version[:3]
|
|||
|
||||
help = Helper()
|
||||
|
||||
def man(key):
|
||||
"""Display documentation on an object in a form similar to man(1)."""
|
||||
object = locate(key)
|
||||
if object:
|
||||
title = 'Python Library Documentation: ' + describe(object)
|
||||
lastdot = rfind(key, '.')
|
||||
if lastdot > 0: title = title + ' in ' + key[:lastdot]
|
||||
pager('\n' + title + '\n\n' + text.document(object, key))
|
||||
found = 1
|
||||
else:
|
||||
print 'no Python documentation found for %s' % repr(key)
|
||||
|
||||
class Scanner:
|
||||
"""A generic tree iterator."""
|
||||
def __init__(self, roots, children, recurse):
|
||||
def __init__(self, roots, children, descendp):
|
||||
self.roots = roots[:]
|
||||
self.state = []
|
||||
self.children = children
|
||||
self.recurse = recurse
|
||||
self.descendp = descendp
|
||||
|
||||
def next(self):
|
||||
if not self.state:
|
||||
|
|
@ -1185,7 +1154,7 @@ class Scanner:
|
|||
self.state.pop()
|
||||
return self.next()
|
||||
child = children.pop(0)
|
||||
if self.recurse(child):
|
||||
if self.descendp(child):
|
||||
self.state.append((child, self.children(child)))
|
||||
return child
|
||||
|
||||
|
|
@ -1203,13 +1172,14 @@ class ModuleScanner(Scanner):
|
|||
children.append((path, package + (package and '.') + file))
|
||||
else:
|
||||
children.append((path, package))
|
||||
children.sort()
|
||||
children.sort() # so that spam.py comes before spam.pyc or spam.pyo
|
||||
return children
|
||||
|
||||
def ispackage(self, (dir, package)):
|
||||
return ispackage(dir)
|
||||
|
||||
def run(self, key, callback, completer=None):
|
||||
key = lower(key)
|
||||
self.quit = 0
|
||||
seen = {}
|
||||
|
||||
|
|
@ -1217,7 +1187,7 @@ class ModuleScanner(Scanner):
|
|||
if modname != '__main__':
|
||||
seen[modname] = 1
|
||||
desc = split(freshimport(modname).__doc__ or '', '\n')[0]
|
||||
if find(lower(modname + ' - ' + desc), lower(key)) >= 0:
|
||||
if find(lower(modname + ' - ' + desc), key) >= 0:
|
||||
callback(None, modname, desc)
|
||||
|
||||
while not self.quit:
|
||||
|
|
@ -1228,10 +1198,13 @@ class ModuleScanner(Scanner):
|
|||
if os.path.isfile(path) and modname:
|
||||
modname = package + (package and '.') + modname
|
||||
if not seen.has_key(modname):
|
||||
seen[modname] = 1
|
||||
desc = synopsis(path) or ''
|
||||
if find(lower(modname + ' - ' + desc), lower(key)) >= 0:
|
||||
callback(path, modname, desc)
|
||||
seen[modname] = 1 # if we see spam.py, skip spam.pyc
|
||||
if key:
|
||||
desc = synopsis(path) or ''
|
||||
if find(lower(modname + ' - ' + desc), key) >= 0:
|
||||
callback(path, modname, desc)
|
||||
else:
|
||||
callback(path, modname, '')
|
||||
if completer: completer()
|
||||
|
||||
def apropos(key):
|
||||
|
|
@ -1247,8 +1220,8 @@ def apropos(key):
|
|||
|
||||
# --------------------------------------------------- web browser interface
|
||||
|
||||
def serve(port, callback=None):
|
||||
import BaseHTTPServer, mimetools, select
|
||||
def serve(port, callback=None, finalizer=None):
|
||||
import BaseHTTPServer, SocketServer, mimetools, select
|
||||
|
||||
# Patch up mimetools.Message so it doesn't break if rfc822 is reloaded.
|
||||
class Message(mimetools.Message):
|
||||
|
|
@ -1306,7 +1279,7 @@ pydoc</strong> by Ka-Ping Yee <ping@lfw.org></font></small></small>'''
|
|||
|
||||
def log_message(self, *args): pass
|
||||
|
||||
class DocServer(BaseHTTPServer.HTTPServer):
|
||||
class DocServer(SocketServer.ForkingMixIn, BaseHTTPServer.HTTPServer):
|
||||
def __init__(self, port, callback):
|
||||
host = (sys.platform == 'mac') and '127.0.0.1' or 'localhost'
|
||||
self.address = ('', port)
|
||||
|
|
@ -1329,10 +1302,12 @@ pydoc</strong> by Ka-Ping Yee <ping@lfw.org></font></small></small>'''
|
|||
DocServer.handler = DocHandler
|
||||
DocHandler.MessageClass = Message
|
||||
try:
|
||||
DocServer(port, callback).serve_until_quit()
|
||||
except (KeyboardInterrupt, select.error):
|
||||
pass
|
||||
print 'server stopped'
|
||||
try:
|
||||
DocServer(port, callback).serve_until_quit()
|
||||
except (KeyboardInterrupt, select.error):
|
||||
pass
|
||||
finally:
|
||||
if finalizer: finalizer()
|
||||
|
||||
# ----------------------------------------------------- graphical interface
|
||||
|
||||
|
|
@ -1404,7 +1379,8 @@ def gui():
|
|||
self.window.wm_minsize(self.minwidth, self.minheight)
|
||||
|
||||
import threading
|
||||
threading.Thread(target=serve, args=(port, self.ready)).start()
|
||||
threading.Thread(
|
||||
target=serve, args=(port, self.ready, self.quit)).start()
|
||||
|
||||
def ready(self, server):
|
||||
self.server = server
|
||||
|
|
@ -1544,8 +1520,10 @@ def cli():
|
|||
except ValueError:
|
||||
raise BadUsage
|
||||
def ready(server):
|
||||
print 'server ready at %s' % server.url
|
||||
serve(port, ready)
|
||||
print 'pydoc server ready at %s' % server.url
|
||||
def stopped():
|
||||
print 'pydoc server stopped'
|
||||
serve(port, ready, stopped)
|
||||
return
|
||||
if opt == '-w':
|
||||
writing = 1
|
||||
|
|
@ -1561,7 +1539,7 @@ def cli():
|
|||
else:
|
||||
writedoc(arg)
|
||||
else:
|
||||
man(arg)
|
||||
doc(arg)
|
||||
except ErrorDuringImport, value:
|
||||
print value
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue