Fixes for various issues reported and discovered since Python 9:

Factor description of import errors into DocImportError.__str__.
Add "docother" and "fail" methods to Doc class.
Factor formatting of constants into "docother".
Increase max string repr limit to 100 characters.
Factor page generation into HTMLDoc.page.
Handle aliasing of names (objects appearing under an attribute
    name different from their intrinsic __name__) by passing the
    attribute name into each doc* method.
Handle methods at top level of modules (e.g. in random).
Try to do reloading efficiently.

Important fixes still to do:
    Module reloading is broken by the unfortunate property that
        failed imports leave an incomplete module in sys.  Still
        need to think of a good solution.
    Can't document modules in the current directory, due to the
        other unfortunate property that sys.path gets '.' when
        you run 'python' but it gets the script directory when
        you run a script.  Need to ponder to find a solution.
    The synopsis() routine does not work on .so modules.
    Aliases cause duplicate copies of documentation to appear.
        This is easy to fix, just more work.
    Classes appear as their intrinsic name, not their attribute name,
        in the class hierarchy.  This should be fixed.
    Inherited methods should be listed in class descriptions.
This commit is contained in:
Ka-Ping Yee 2001-03-23 00:12:53 +00:00
parent 015415ed14
commit 37f7b38eb6
1 changed files with 330 additions and 225 deletions

View File

@ -4,24 +4,25 @@
In the Python interpreter, do "from pydoc import help" to provide online
help. Calling help(thing) on a Python object documents the object.
At the shell command line outside of Python:
Run "pydoc <name>" to show documentation on something. <name> may be
the name of a function, module, package, or a dotted reference to a
class or function within a module or module in a package. If the
argument contains a path segment delimiter (e.g. slash on Unix,
backslash on Windows) it is treated as the path to a Python source file.
Or, at the shell command line outside of Python:
Run "pydoc -k <keyword>" to search for a keyword in the synopsis lines
of all available modules.
Run "pydoc <name>" to show documentation on something. <name> may be
the name of a function, module, package, or a dotted reference to a
class or function within a module or module in a package. If the
argument contains a path segment delimiter (e.g. slash on Unix,
backslash on Windows) it is treated as the path to a Python source file.
Run "pydoc -p <port>" to start an HTTP server on a given port on the
local machine to generate documentation web pages.
Run "pydoc -k <keyword>" to search for a keyword in the synopsis lines
of all available modules.
For platforms without a command line, "pydoc -g" starts the HTTP server
and also pops up a little window for controlling it.
Run "pydoc -p <port>" to start an HTTP server on a given port on the
local machine to generate documentation web pages.
Run "pydoc -w <name>" to write out the HTML documentation for a module
to a file named "<name>.html".
For platforms without a command line, "pydoc -g" starts the HTTP server
and also pops up a little window for controlling it.
Run "pydoc -w <name>" to write out the HTML documentation for a module
to a file named "<name>.html".
"""
__author__ = "Ka-Ping Yee <ping@lfw.org>"
@ -48,6 +49,7 @@ def synopsis(filename, cache={}):
"""Get the one-line summary out of a module file."""
mtime = os.stat(filename)[stat.ST_MTIME]
lastupdate, result = cache.get(filename, (0, None))
# XXX what if ext is 'rb' type in imp_getsuffixes?
if lastupdate < mtime:
file = open(filename)
line = file.readline()
@ -137,13 +139,17 @@ def modulename(path):
class DocImportError(Exception):
"""Class for errors while trying to import something to document it."""
def __init__(self, filename, etype, evalue):
def __init__(self, filename, (type, value, tb)):
self.filename = filename
self.etype = etype
self.evalue = evalue
if type(etype) is types.ClassType:
etype = etype.__name__
self.args = '%s: %s' % (etype, evalue)
self.type = type
self.value = value
self.tb = tb
def __str__(self):
t = self.type
if type(t) is types.ClassType:
t = t.__name__
return 'problem in %s - %s: %s' % (self.filename, t, self.value)
def importfile(path):
"""Import a Python source file or compiled file given its path."""
@ -160,29 +166,35 @@ def importfile(path):
try:
module = imp.load_module(name, file, path, (ext, 'r', kind))
except:
raise DocImportError(path, sys.exc_type, sys.exc_value)
raise DocImportError(path, sys.exc_info())
file.close()
return module
def ispackage(path):
"""Guess whether a path refers to a package directory."""
if os.path.isdir(path):
init = os.path.join(path, '__init__.py')
initc = os.path.join(path, '__init__.pyc')
if os.path.isfile(init) or os.path.isfile(initc):
return 1
for ext in ['.py', '.pyc', '.pyo']:
if os.path.isfile(os.path.join(path, '__init__' + ext)):
return 1
# ---------------------------------------------------- formatter base class
class Doc:
def document(self, object, *args):
def document(self, object, name=None, *args):
"""Generate documentation for an object."""
args = (object,) + args
args = (object, name) + args
if inspect.ismodule(object): return apply(self.docmodule, args)
if inspect.isclass(object): return apply(self.docclass, args)
if inspect.isroutine(object): return apply(self.docroutine, args)
raise TypeError, "don't know how to document objects of type " + \
type(object).__name__
return apply(self.docother, args)
def fail(self, object, name=None, *args):
"""Raise an exception for unimplemented types."""
message = "don't know how to document object%s of type %s" % (
name and ' ' + repr(name), type(object).__name__)
raise TypeError, message
docmodule = docclass = docroutine = docother = fail
# -------------------------------------------- HTML documentation generator
@ -191,14 +203,13 @@ class HTMLRepr(Repr):
def __init__(self):
Repr.__init__(self)
self.maxlist = self.maxtuple = self.maxdict = 10
self.maxstring = self.maxother = 50
self.maxstring = self.maxother = 100
def escape(self, text):
return replace(text, ('&', '&amp;'), ('<', '&lt;'), ('>', '&gt;'))
def repr(self, object):
result = Repr.repr(self, object)
return result
return Repr.repr(self, object)
def repr1(self, x, level):
methodname = 'repr_' + join(split(type(x).__name__), '_')
@ -220,7 +231,7 @@ class HTMLRepr(Repr):
def repr_instance(self, x, level):
try:
return cram(stripid(repr(x)), self.maxstring)
return self.escape(cram(stripid(repr(x)), self.maxstring))
except:
return self.escape('<%s instance>' % x.__class__.__name__)
@ -235,6 +246,52 @@ class HTMLDoc(Doc):
repr = _repr_instance.repr
escape = _repr_instance.escape
def page(self, title, contents):
"""Format an HTML page."""
return '''
<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><title>Python: %s</title><body bgcolor="#f0f0f8">
%s
</body></html>''' % (title, contents)
def heading(self, title, fgcol, bgcol, extras=''):
"""Format a page heading."""
return '''
<table width="100%%" cellspacing=0 cellpadding=2 border=0>
<tr bgcolor="%s">
<td valign=bottom><small>&nbsp;<br></small
><font color="%s" face="helvetica">&nbsp;<br>%s</font></td
><td align=right valign=bottom
><font color="%s" face="helvetica">%s</font></td></tr></table>
''' % (bgcol, fgcol, title, fgcol, extras or '&nbsp;')
def section(self, title, fgcol, bgcol, contents, width=20,
prelude='', marginalia=None, gap='&nbsp;&nbsp;'):
"""Format a section with a heading."""
if marginalia is None:
marginalia = '&nbsp;' * width
result = '''
<p><table width="100%%" cellspacing=0 cellpadding=2 border=0>
<tr bgcolor="%s">
<td colspan=3 valign=bottom><small><small>&nbsp;<br></small></small
><font color="%s" face="helvetica, arial">%s</font></td></tr>
''' % (bgcol, fgcol, title)
if prelude:
result = result + '''
<tr bgcolor="%s"><td>%s</td>
<td colspan=2>%s</td></tr>
''' % (bgcol, marginalia, prelude)
result = result + '''
<tr><td bgcolor="%s">%s</td><td>%s</td>
''' % (bgcol, marginalia, gap)
return result + '<td width="100%%">%s</td></tr></table>' % contents
def bigsection(self, title, *args):
"""Format a section with a big heading."""
title = '<big><strong>%s</strong></big>' % title
return apply(self.section, (title,) + args)
def preformat(self, text):
"""Format literal preformatted text."""
text = self.escape(expandtabs(text))
@ -245,7 +302,6 @@ class HTMLDoc(Doc):
"""Format a list of items into a multi-column list."""
result = ''
rows = (len(list)+cols-1)/cols
for col in range(cols):
result = result + '<td width="%d%%" valign=top>' % (100/cols)
for i in range(rows*col, rows*col+rows):
@ -254,44 +310,8 @@ class HTMLDoc(Doc):
result = result + '</td>'
return '<table width="100%%"><tr>%s</tr></table>' % result
def heading(self, title, fgcol, bgcol, extras=''):
"""Format a page heading."""
return """
<p><table width="100%%" cellspacing=0 cellpadding=0 border=0>
<tr bgcolor="%s"><td>&nbsp;</td>
<td valign=bottom><small><small><br></small></small
><font color="%s" face="helvetica"><br>&nbsp;%s</font></td
><td align=right valign=bottom
><font color="%s" face="helvetica">%s</font></td><td>&nbsp;</td></tr></table>
""" % (bgcol, fgcol, title, fgcol, extras or '&nbsp;')
def section(self, title, fgcol, bgcol, contents, width=20,
prelude='', marginalia=None, gap='&nbsp;&nbsp;&nbsp;'):
"""Format a section with a heading."""
if marginalia is None:
marginalia = '&nbsp;' * width
result = """
<p><table width="100%%" cellspacing=0 cellpadding=0 border=0>
<tr bgcolor="%s"><td rowspan=2>&nbsp;</td>
<td colspan=3 valign=bottom><small><small><br></small></small
><font color="%s" face="helvetica, arial">&nbsp;%s</font></td></tr>
""" % (bgcol, fgcol, title)
if prelude:
result = result + """
<tr><td bgcolor="%s">%s</td>
<td bgcolor="%s" colspan=2>%s</td></tr>
""" % (bgcol, marginalia, bgcol, prelude)
result = result + """
<tr><td bgcolor="%s">%s</td><td>%s</td>
""" % (bgcol, marginalia, gap)
result = result + '<td width="100%%">%s</td></tr></table>' % contents
return result
def bigsection(self, title, *args):
"""Format a section with a big heading."""
title = '<big><strong>%s</strong></big>' % title
return apply(self.section, (title,) + args)
def small(self, text): return '<small>%s</small>' % text
def grey(self, text): return '<font color="#909090">%s</font>' % text
def namelink(self, name, *dicts):
"""Make a link for an identifier, given name-to-URL mappings."""
@ -317,7 +337,7 @@ class HTMLDoc(Doc):
def modpkglink(self, (name, path, ispackage, shadowed)):
"""Make a link for a module or package to display in an index."""
if shadowed:
return '<font color="#909090">%s</font>' % name
return self.grey(name)
if path:
url = '%s.%s.html' % (path, name)
else:
@ -362,7 +382,7 @@ class HTMLDoc(Doc):
# ---------------------------------------------- type-specific routines
def doctree(self, tree, modname, classes={}, parent=None):
def formattree(self, tree, modname, classes={}, parent=None):
"""Produce HTML for a class tree as given by inspect.getclasstree()."""
result = ''
for entry in tree:
@ -377,13 +397,13 @@ class HTMLDoc(Doc):
result = result + '(' + join(parents, ', ') + ')'
result = result + '\n</small></font></dt>'
elif type(entry) is type([]):
result = result + \
'<dd>\n%s</dd>\n' % self.doctree(entry, modname, classes, c)
result = result + '<dd>\n%s</dd>\n' % self.formattree(
entry, modname, classes, c)
return '<dl>\n%s</dl>\n' % result
def docmodule(self, object):
def docmodule(self, object, name=None):
"""Produce HTML documentation for a module object."""
name = object.__name__
name = object.__name__ # ignore the passed-in name
parts = split(name, '.')
links = []
for i in range(len(parts)-1):
@ -410,36 +430,42 @@ class HTMLDoc(Doc):
result = self.heading(
head, '#ffffff', '#7799ee', '<a href=".">index</a><br>' + filelink)
second = lambda list: list[1]
modules = map(second, inspect.getmembers(object, inspect.ismodule))
modules = inspect.getmembers(object, inspect.ismodule)
if 0 and hasattr(object, '__all__'):
visible = lambda key, all=object.__all__: key in all
else:
visible = lambda key: key[:1] != '_'
classes, cdict = [], {}
for key, value in inspect.getmembers(object, inspect.isclass):
if (inspect.getmodule(value) or object) is object:
classes.append(value)
if visible(key) and (
inspect.getmodule(value) or object) is object:
classes.append((key, value))
cdict[key] = cdict[value] = '#' + key
funcs, fdict = [], {}
for key, value in inspect.getmembers(object, inspect.isroutine):
if inspect.isbuiltin(value) or inspect.getmodule(value) is object:
funcs.append(value)
fdict[key] = '#-' + key
if inspect.isfunction(value): fdict[value] = fdict[key]
for c in classes:
for base in c.__bases__:
for key, value in classes:
for base in value.__bases__:
key, modname = base.__name__, base.__module__
if modname != name and sys.modules.has_key(modname):
module = sys.modules[modname]
if hasattr(module, key) and getattr(module, key) is base:
module = sys.modules.get(modname)
if modname != name and module and hasattr(module, key):
if getattr(module, key) is base:
if not cdict.has_key(key):
cdict[key] = cdict[base] = modname + '.html#' + key
funcs, fdict = [], {}
for key, value in inspect.getmembers(object, inspect.isroutine):
if visible(key) and (inspect.isbuiltin(value) or
inspect.getmodule(value) is object):
funcs.append((key, value))
fdict[key] = '#-' + key
if inspect.isfunction(value): fdict[value] = fdict[key]
constants = []
for key, value in inspect.getmembers(object, isconstant):
if key[:1] != '_':
if visible(key):
constants.append((key, value))
doc = self.markup(getdoc(object), self.preformat, fdict, cdict)
doc = doc and '<tt>%s</tt>' % doc
result = result + '<p><small>%s</small></p>\n' % doc
result = result + '<p>%s\n' % self.small(doc)
if hasattr(object, '__path__'):
modpkgs = []
@ -457,39 +483,36 @@ class HTMLDoc(Doc):
contents = self.multicolumn(modpkgs, self.modpkglink)
result = result + self.bigsection(
'Package Contents', '#ffffff', '#aa55cc', contents)
elif modules:
contents = self.multicolumn(modules, self.modulelink)
contents = self.multicolumn(
modules, lambda (key, value), s=self: s.modulelink(value))
result = result + self.bigsection(
'Modules', '#fffff', '#aa55cc', contents)
if classes:
contents = self.doctree(
inspect.getclasstree(classes, 1), name, cdict)
for item in classes:
contents = contents + self.document(item, fdict, cdict)
classlist = map(lambda (key, value): value, classes)
contents = [self.formattree(
inspect.getclasstree(classlist, 1), name, cdict)]
for key, value in classes:
contents.append(self.document(value, key, fdict, cdict))
result = result + self.bigsection(
'Classes', '#ffffff', '#ee77aa', contents)
'Classes', '#ffffff', '#ee77aa', join(contents))
if funcs:
contents = ''
for item in funcs:
contents = contents + self.document(item, fdict, cdict)
contents = []
for key, value in funcs:
contents.append(self.document(value, key, fdict, cdict))
result = result + self.bigsection(
'Functions', '#ffffff', '#eeaa77', contents)
'Functions', '#ffffff', '#eeaa77', join(contents))
if constants:
contents = ''
contents = []
for key, value in constants:
contents = contents + ('<br><strong>%s</strong> = %s' %
(key, self.repr(value)))
contents.append(self.document(value, key))
result = result + self.bigsection(
'Constants', '#ffffff', '#55aa55', contents)
'Constants', '#ffffff', '#55aa55', join(contents, '<br>'))
if hasattr(object, '__author__'):
contents = self.markup(str(object.__author__), self.preformat)
result = result + self.bigsection(
'Author', '#ffffff', '#7799ee', contents)
if hasattr(object, '__credits__'):
contents = self.markup(str(object.__credits__), self.preformat)
result = result + self.bigsection(
@ -497,67 +520,84 @@ class HTMLDoc(Doc):
return result
def docclass(self, object, funcs={}, classes={}):
def docclass(self, object, name=None, funcs={}, classes={}):
"""Produce HTML documentation for a class object."""
name = object.__name__
realname = object.__name__
name = name or realname
bases = object.__bases__
contents = ''
methods, mdict = [], {}
for key, value in inspect.getmembers(object, inspect.ismethod):
methods.append(value)
methods.append((key, value))
mdict[key] = mdict[value] = '#' + name + '-' + key
for item in methods:
for key, value in methods:
contents = contents + self.document(
item, funcs, classes, mdict, name)
value, key, funcs, classes, mdict, name)
if name == realname:
title = '<a name="%s">class <strong>%s</strong></a>' % (
name, realname)
else:
title = '<strong>%s</strong> = <a name="%s">class %s</a>' % (
name, name, realname)
title = '<a name="%s">class <strong>%s</strong></a>' % (name, name)
if bases:
parents = []
for base in bases:
parents.append(self.classlink(base, object.__module__, classes))
parents.append(
self.classlink(base, object.__module__, classes))
title = title + '(%s)' % join(parents, ', ')
doc = self.markup(getdoc(object), self.preformat,
funcs, classes, mdict)
if doc: doc = '<small><tt>' + doc + '</tt></small>'
doc = self.markup(
getdoc(object), self.preformat, funcs, classes, mdict)
if doc: doc = self.small('<tt>%s</tt>' % doc)
return self.section(title, '#000000', '#ffc8d8', contents, 10, doc)
def formatvalue(self, object):
"""Format an argument default value as text."""
return ('<small><font color="#909090">=%s</font></small>' %
self.repr(object))
return self.small(self.grey('=' + self.repr(object)))
def docroutine(self, object, funcs={}, classes={}, methods={}, clname=''):
def docroutine(self, object, name=None,
funcs={}, classes={}, methods={}, clname=''):
"""Produce HTML documentation for a function or method object."""
if inspect.ismethod(object): object = object.im_func
realname = object.__name__
name = name or realname
anchor = clname + '-' + realname
note = ''
if inspect.ismethod(object):
if not clname:
note = self.small(self.grey(
object.im_self and
'method of ' + self.repr(object.im_self) or
' unbound %s method' % object.im_class.__name__))
object = object.im_func
if name == realname:
title = '<a name="%s"><strong>%s</strong></a>' % (anchor, realname)
else:
title = '<strong>%s</strong> = <a name="%s">%s</a>' % (
name, anchor, realname)
if inspect.isbuiltin(object):
decl = '<a name="%s"><strong>%s</strong>(...)</a>\n' % (
clname + '-' + object.__name__, object.__name__)
argspec = '(...)'
else:
args, varargs, varkw, defaults = inspect.getargspec(object)
argspec = inspect.formatargspec(
args, varargs, varkw, defaults, formatvalue=self.formatvalue)
if realname == '<lambda>':
decl = '<em>lambda</em>'
argspec = argspec[1:-1] # remove parentheses
if object.__name__ == '<lambda>':
decl = '<em>lambda</em> ' + argspec[1:-1]
else:
anchor = clname + '-' + object.__name__
decl = '<a name="%s"\n><strong>%s</strong>%s</a>\n' % (
anchor, object.__name__, argspec)
doc = self.markup(getdoc(object), self.preformat,
funcs, classes, methods)
decl = title + argspec + note
doc = self.markup(
getdoc(object), self.preformat, funcs, classes, methods)
doc = replace(doc, ('<br>\n', '</tt></small\n><dd><small><tt>'))
doc = doc and '<tt>%s</tt>' % doc
return '<dl><dt>%s<dd><small>%s</small></dl>' % (decl, doc)
return '<dl><dt>%s<dd>%s</dl>' % (decl, self.small(doc))
def page(self, object):
"""Produce a complete HTML page of documentation for an object."""
return '''
<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><title>Python: %s</title><body bgcolor="#ffffff">
%s
</body></html>
''' % (describe(object), self.document(object))
def docother(self, object, name=None):
"""Produce HTML documentation for a data object."""
return '<strong>%s</strong> = %s' % (name, self.repr(object))
def index(self, dir, shadowed=None):
"""Generate an HTML index for a directory of modules."""
@ -594,7 +634,7 @@ class TextRepr(Repr):
def __init__(self):
Repr.__init__(self)
self.maxlist = self.maxtuple = self.maxdict = 10
self.maxstring = self.maxother = 50
self.maxstring = self.maxother = 100
def repr1(self, x, level):
methodname = 'repr_' + join(split(type(x).__name__), '_')
@ -644,27 +684,25 @@ class TextDoc(Doc):
# ---------------------------------------------- type-specific routines
def doctree(self, tree, modname, parent=None, prefix=''):
def formattree(self, tree, modname, parent=None, prefix=''):
"""Render in text a class tree as returned by inspect.getclasstree()."""
result = ''
for entry in tree:
if type(entry) is type(()):
cl, bases = entry
result = result + prefix + classname(cl, modname)
c, bases = entry
result = result + prefix + classname(c, modname)
if bases and bases != (parent,):
parents = map(lambda cl, m=modname: classname(cl, m), bases)
parents = map(lambda c, m=modname: classname(c, m), bases)
result = result + '(%s)' % join(parents, ', ')
result = result + '\n'
elif type(entry) is type([]):
result = result + self.doctree(
entry, modname, cl, prefix + ' ')
result = result + self.formattree(
entry, modname, c, prefix + ' ')
return result
def docmodule(self, object):
def docmodule(self, object, name=None):
"""Produce text documentation for a given module object."""
result = ''
name = object.__name__
name = object.__name__ # ignore the passed-in name
lines = split(strip(getdoc(object)), '\n')
if len(lines) == 1:
if lines[0]: name = name + ' - ' + lines[0]
@ -672,9 +710,12 @@ class TextDoc(Doc):
elif len(lines) >= 2 and not rstrip(lines[1]):
if lines[0]: name = name + ' - ' + lines[0]
lines = lines[2:]
result = result + self.section('NAME', name)
try: file = inspect.getabsfile(object)
except TypeError: file = '(built-in)'
result = self.section('NAME', name)
try:
file = inspect.getabsfile(object)
except TypeError:
file = '(built-in)'
result = result + self.section('FILE', file)
if lines:
result = result + self.section('DESCRIPTION', join(lines, '\n'))
@ -682,11 +723,11 @@ class TextDoc(Doc):
classes = []
for key, value in inspect.getmembers(object, inspect.isclass):
if (inspect.getmodule(value) or object) is object:
classes.append(value)
classes.append((key, value))
funcs = []
for key, value in inspect.getmembers(object, inspect.isroutine):
if inspect.isbuiltin(value) or inspect.getmodule(value) is object:
funcs.append(value)
funcs.append((key, value))
constants = []
for key, value in inspect.getmembers(object, isconstant):
if key[:1] != '_':
@ -707,27 +748,24 @@ class TextDoc(Doc):
'PACKAGE CONTENTS', join(modpkgs, '\n'))
if classes:
contents = self.doctree(
inspect.getclasstree(classes, 1), object.__name__) + '\n'
for item in classes:
contents = contents + self.document(item) + '\n'
result = result + self.section('CLASSES', contents)
classlist = map(lambda (key, value): value, classes)
contents = [self.formattree(
inspect.getclasstree(classlist, 1), name)]
for key, value in classes:
contents.append(self.document(value, key))
result = result + self.section('CLASSES', join(contents, '\n'))
if funcs:
contents = ''
for item in funcs:
contents = contents + self.document(item) + '\n'
result = result + self.section('FUNCTIONS', contents)
contents = []
for key, value in funcs:
contents.append(self.document(value, key))
result = result + self.section('FUNCTIONS', join(contents, '\n'))
if constants:
contents = ''
contents = []
for key, value in constants:
line = key + ' = ' + self.repr(value)
chop = 70 - len(line)
line = self.bold(key) + ' = ' + self.repr(value)
if chop < 0: line = line[:chop] + '...'
contents = contents + line + '\n'
result = result + self.section('CONSTANTS', contents)
contents.append(self.docother(value, key, 70))
result = result + self.section('CONSTANTS', join(contents, '\n'))
if hasattr(object, '__version__'):
version = str(object.__version__)
@ -742,22 +780,24 @@ class TextDoc(Doc):
result = result + self.section('CREDITS', str(object.__credits__))
return result
def docclass(self, object):
def docclass(self, object, name=None):
"""Produce text documentation for a given class object."""
name = object.__name__
realname = object.__name__
name = name or realname
bases = object.__bases__
title = 'class ' + self.bold(name)
if name == realname:
title = 'class ' + self.bold(realname)
else:
title = self.bold(name) + ' = class ' + realname
if bases:
parents = map(lambda c, m=object.__module__: classname(c, m), bases)
title = title + '(%s)' % join(parents, ', ')
doc = getdoc(object)
contents = doc and doc + '\n'
methods = map(lambda (key, value): value,
inspect.getmembers(object, inspect.ismethod))
for item in methods:
contents = contents + '\n' + self.document(item)
for key, value in inspect.getmembers(object, inspect.ismethod):
contents = contents + '\n' + self.document(value, key, name)
if not contents: return title + '\n'
return title + '\n' + self.indent(rstrip(contents), ' | ') + '\n'
@ -766,25 +806,50 @@ class TextDoc(Doc):
"""Format an argument default value as text."""
return '=' + self.repr(object)
def docroutine(self, object):
def docroutine(self, object, name=None, clname=None):
"""Produce text documentation for a function or method object."""
if inspect.ismethod(object): object = object.im_func
realname = object.__name__
name = name or realname
note = ''
if inspect.ismethod(object):
if not clname:
if object.im_self:
note = ' method of %s' % self.repr(object.im_self)
else:
note = ' unbound %s method' % object.im_class.__name__
object = object.im_func
if name == realname:
title = self.bold(realname)
else:
title = self.bold(name) + ' = ' + realname
if inspect.isbuiltin(object):
decl = self.bold(object.__name__) + '(...)'
argspec = '(...)'
else:
args, varargs, varkw, defaults = inspect.getargspec(object)
argspec = inspect.formatargspec(
args, varargs, varkw, defaults, formatvalue=self.formatvalue)
if object.__name__ == '<lambda>':
decl = '<lambda> ' + argspec[1:-1]
else:
decl = self.bold(object.__name__) + argspec
if realname == '<lambda>':
title = 'lambda'
argspec = argspec[1:-1] # remove parentheses
decl = title + argspec + note
doc = getdoc(object)
if doc:
return decl + '\n' + rstrip(self.indent(doc)) + '\n'
else:
return decl + '\n'
def docother(self, object, name=None, maxlen=None):
"""Produce text documentation for a data object."""
repr = self.repr(object)
if maxlen:
line = name + ' = ' + repr
chop = maxlen - len(line)
if chop < 0: repr = repr[:chop] + '...'
line = self.bold(name) + ' = ' + repr
return line
# --------------------------------------------------------- user interfaces
def pager(text):
@ -902,7 +967,21 @@ def describe(thing):
return 'function ' + thing.__name__
if inspect.ismethod(thing):
return 'method ' + thing.__name__
return repr(thing)
if type(thing) is types.InstanceType:
return 'instance of ' + thing.__class__.__name__
return type(thing).__name__
def freshimp(path, cache={}):
"""Import a module, reloading it if the source file has changed."""
module = __import__(path)
if hasattr(module, '__file__'):
file = module.__file__
info = (file, os.path.getmtime(file), os.path.getsize(file))
if cache.has_key(path):
if cache[path] != info:
module = reload(module)
cache[path] = info
return module
def locate(path):
"""Locate an object by name (or dotted path), importing as necessary."""
@ -915,8 +994,7 @@ def locate(path):
while n <= len(parts):
path = join(parts[:n], '.')
try:
module = __import__(path)
module = reload(module)
module = freshimp(path)
except:
# determine if error occurred before or after module was found
if sys.modules.has_key(path):
@ -927,7 +1005,7 @@ def locate(path):
# module not found, so stop looking
break
# error occurred in the imported module, so report it
raise DocImportError(filename, sys.exc_type, sys.exc_value)
raise DocImportError(filename, sys.exc_info())
try:
x = module
for p in parts[1:]:
@ -951,12 +1029,12 @@ def doc(thing):
try:
path, x = locate(thing)
except DocImportError, value:
print 'Problem in %s - %s' % (value.filename, value.args)
print value
return
if x:
thing = x
else:
print 'No Python documentation found for %s.' % repr(thing)
print 'no Python documentation found for %s' % repr(thing)
return
desc = describe(thing)
@ -967,18 +1045,40 @@ def doc(thing):
def writedoc(key):
"""Write HTML documentation to a file in the current directory."""
path, object = locate(key)
if object:
file = open(key + '.html', 'w')
file.write(html.page(object))
file.close()
print 'wrote', key + '.html'
try:
path, object = locate(key)
except DocImportError, value:
print value
else:
if object:
page = html.page('Python: ' + describe(object),
html.document(object, object.__name__))
file = open(key + '.html', 'w')
file.write(page)
file.close()
print 'wrote', key + '.html'
else:
print 'no Python documentation found for %s' % repr(key)
def writedocs(dir, pkgpath='', done={}):
"""Write out HTML documentation for all modules in a directory tree."""
for file in os.listdir(dir):
path = os.path.join(dir, file)
if ispackage(path):
writedocs(path, pkgpath + file + '.')
elif os.path.isfile(path):
modname = modulename(path)
if modname:
modname = pkgpath + modname
if not done.has_key(modname):
done[modname] = 1
writedoc(modname)
class Helper:
def __repr__(self):
return """To get help on a Python object, call help(object).
return '''To get help on a Python object, call help(object).
To get help on a module or package, either import it before calling
help(module) or call help('modulename')."""
help(module) or call help('modulename').'''
def __call__(self, *args):
if args:
@ -994,10 +1094,10 @@ def man(key):
if object:
title = 'Python Library Documentation: ' + describe(object)
if path: title = title + ' in ' + path
pager('\n' + title + '\n\n' + text.document(object))
pager('\n' + title + '\n\n' + text.document(object, key))
found = 1
else:
print 'No Python documentation found for %s.' % repr(key)
print 'no Python documentation found for %s' % repr(key)
class Scanner:
"""A generic tree iterator."""
@ -1049,7 +1149,7 @@ class ModuleScanner(Scanner):
for modname in sys.builtin_module_names:
if modname != '__main__':
seen[modname] = 1
desc = split(__import__(modname).__doc__ or '', '\n')[0]
desc = split(freshimp(modname).__doc__ or '', '\n')[0]
if find(lower(modname + ' - ' + desc), lower(key)) >= 0:
callback(None, modname, desc)
@ -1096,11 +1196,7 @@ def serve(port, callback=None):
self.send_response(200)
self.send_header('Content-Type', 'text/html')
self.end_headers()
self.wfile.write('''
<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><title>Python: %s</title><body bgcolor="#ffffff">
%s
</body></html>''' % (title, contents))
self.wfile.write(html.page(title, contents))
except IOError: pass
def do_GET(self):
@ -1111,14 +1207,13 @@ def serve(port, callback=None):
try:
p, x = locate(path)
except DocImportError, value:
self.send_document(path, html.escape(
'Problem in %s - %s' % (value.filename, value.args)))
self.send_document(path, html.escape(str(value)))
return
if x:
self.send_document(describe(x), html.document(x))
self.send_document(describe(x), html.document(x, path))
else:
self.send_document(path,
'No Python documentation found for %s.' % repr(path))
'no Python documentation found for %s' % repr(path))
else:
heading = html.heading(
'<big><big><strong>Python: Index of Modules</strong></big></big>',
@ -1130,12 +1225,14 @@ def serve(port, callback=None):
indices = ['<p>' + html.bigsection(
'Built-in Modules', '#ffffff', '#ee77aa', contents)]
# for skip in ['', '.', os.getcwd(), os.path.dirname(sys.argv[0])]:
# if skip in sys.path: sys.path.remove(skip)
seen = {}
for dir in pathdirs():
indices.append(html.index(dir, seen))
contents = heading + join(indices) + """<p align=right>
contents = heading + join(indices) + '''<p align=right>
<small><small><font color="#909090" face="helvetica, arial"><strong>
pydoc</strong> by Ka-Ping Yee &lt;ping@lfw.org&gt;</font></small></small>"""
pydoc</strong> by Ka-Ping Yee &lt;ping@lfw.org&gt;</font></small></small>'''
self.send_document('Index of Modules', contents)
def log_message(self, *args): pass
@ -1143,7 +1240,7 @@ pydoc</strong> by Ka-Ping Yee &lt;ping@lfw.org&gt;</font></small></small>"""
class DocServer(BaseHTTPServer.HTTPServer):
def __init__(self, port, callback):
host = (sys.platform == 'mac') and '127.0.0.1' or 'localhost'
self.address = (host, port)
self.address = ('', port)
self.url = 'http://%s:%d/' % (host, port)
self.callback = callback
self.base.__init__(self, self.address, self.handler)
@ -1348,6 +1445,9 @@ def gui():
# -------------------------------------------------- command-line interface
def ispath(x):
return type(x) is types.StringType and find(x, os.sep) >= 0
def cli():
"""Command-line interface (looks at sys.argv to decide what to do)."""
import getopt
@ -1384,12 +1484,17 @@ def cli():
if not args: raise BadUsage
for arg in args:
try:
if find(arg, os.sep) >= 0 and os.path.isfile(arg):
if ispath(arg) and os.path.isfile(arg):
arg = importfile(arg)
if writing: writedoc(arg)
else: man(arg)
if writing:
if ispath(arg) and os.path.isdir(arg):
writedocs(arg)
else:
writedoc(arg)
else:
man(arg)
except DocImportError, value:
print 'Problem in %s - %s' % (value.filename, value.args)
print value
except (getopt.error, BadUsage):
cmd = sys.argv[0]