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Whitespace normalization.

This commit is contained in:
Tim Peters 2001-01-15 03:26:36 +00:00
parent 495ad3c8cc
commit b90f89a496
9 changed files with 493 additions and 496 deletions
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195
Lib/tabnanny.py
View File

@ -248,125 +248,124 @@ def format_witnesses(w):
# in use.
if hasattr(tokenize, 'NL'):
# take advantage of Guido's patch!
# take advantage of Guido's patch!
indents = []
check_equal = 0
indents = []
check_equal = 0
def reset_globals():
global indents, check_equal
check_equal = 0
indents = [Whitespace("")]
def reset_globals():
global indents, check_equal
check_equal = 0
indents = [Whitespace("")]
def tokeneater(type, token, start, end, line,
INDENT=tokenize.INDENT,
DEDENT=tokenize.DEDENT,
NEWLINE=tokenize.NEWLINE,
JUNK=(tokenize.COMMENT, tokenize.NL) ):
global indents, check_equal
def tokeneater(type, token, start, end, line,
INDENT=tokenize.INDENT,
DEDENT=tokenize.DEDENT,
NEWLINE=tokenize.NEWLINE,
JUNK=(tokenize.COMMENT, tokenize.NL) ):
global indents, check_equal
if type == NEWLINE:
# a program statement, or ENDMARKER, will eventually follow,
# after some (possibly empty) run of tokens of the form
# (NL | COMMENT)* (INDENT | DEDENT+)?
# If an INDENT appears, setting check_equal is wrong, and will
# be undone when we see the INDENT.
check_equal = 1
if type == NEWLINE:
# a program statement, or ENDMARKER, will eventually follow,
# after some (possibly empty) run of tokens of the form
# (NL | COMMENT)* (INDENT | DEDENT+)?
# If an INDENT appears, setting check_equal is wrong, and will
# be undone when we see the INDENT.
check_equal = 1
elif type == INDENT:
check_equal = 0
thisguy = Whitespace(token)
if not indents[-1].less(thisguy):
witness = indents[-1].not_less_witness(thisguy)
msg = "indent not greater e.g. " + format_witnesses(witness)
raise NannyNag(start[0], msg, line)
indents.append(thisguy)
elif type == INDENT:
check_equal = 0
thisguy = Whitespace(token)
if not indents[-1].less(thisguy):
witness = indents[-1].not_less_witness(thisguy)
msg = "indent not greater e.g. " + format_witnesses(witness)
raise NannyNag(start[0], msg, line)
indents.append(thisguy)
elif type == DEDENT:
# there's nothing we need to check here! what's important is
# that when the run of DEDENTs ends, the indentation of the
# program statement (or ENDMARKER) that triggered the run is
# equal to what's left at the top of the indents stack
elif type == DEDENT:
# there's nothing we need to check here! what's important is
# that when the run of DEDENTs ends, the indentation of the
# program statement (or ENDMARKER) that triggered the run is
# equal to what's left at the top of the indents stack
# Ouch! This assert triggers if the last line of the source
# is indented *and* lacks a newline -- then DEDENTs pop out
# of thin air.
# assert check_equal # else no earlier NEWLINE, or an earlier INDENT
check_equal = 1
# Ouch! This assert triggers if the last line of the source
# is indented *and* lacks a newline -- then DEDENTs pop out
# of thin air.
# assert check_equal # else no earlier NEWLINE, or an earlier INDENT
check_equal = 1
del indents[-1]
del indents[-1]
elif check_equal and type not in JUNK:
# this is the first "real token" following a NEWLINE, so it
# must be the first token of the next program statement, or an
# ENDMARKER; the "line" argument exposes the leading whitespace
# for this statement; in the case of ENDMARKER, line is an empty
# string, so will properly match the empty string with which the
# "indents" stack was seeded
check_equal = 0
thisguy = Whitespace(line)
if not indents[-1].equal(thisguy):
witness = indents[-1].not_equal_witness(thisguy)
msg = "indent not equal e.g. " + format_witnesses(witness)
raise NannyNag(start[0], msg, line)
elif check_equal and type not in JUNK:
# this is the first "real token" following a NEWLINE, so it
# must be the first token of the next program statement, or an
# ENDMARKER; the "line" argument exposes the leading whitespace
# for this statement; in the case of ENDMARKER, line is an empty
# string, so will properly match the empty string with which the
# "indents" stack was seeded
check_equal = 0
thisguy = Whitespace(line)
if not indents[-1].equal(thisguy):
witness = indents[-1].not_equal_witness(thisguy)
msg = "indent not equal e.g. " + format_witnesses(witness)
raise NannyNag(start[0], msg, line)
else:
# unpatched version of tokenize
# unpatched version of tokenize
nesting_level = 0
indents = []
check_equal = 0
nesting_level = 0
indents = []
check_equal = 0
def reset_globals():
global nesting_level, indents, check_equal
nesting_level = check_equal = 0
indents = [Whitespace("")]
def reset_globals():
global nesting_level, indents, check_equal
nesting_level = check_equal = 0
indents = [Whitespace("")]
def tokeneater(type, token, start, end, line,
INDENT=tokenize.INDENT,
DEDENT=tokenize.DEDENT,
NEWLINE=tokenize.NEWLINE,
COMMENT=tokenize.COMMENT,
OP=tokenize.OP):
global nesting_level, indents, check_equal
def tokeneater(type, token, start, end, line,
INDENT=tokenize.INDENT,
DEDENT=tokenize.DEDENT,
NEWLINE=tokenize.NEWLINE,
COMMENT=tokenize.COMMENT,
OP=tokenize.OP):
global nesting_level, indents, check_equal
if type == INDENT:
check_equal = 0
thisguy = Whitespace(token)
if not indents[-1].less(thisguy):
witness = indents[-1].not_less_witness(thisguy)
msg = "indent not greater e.g. " + format_witnesses(witness)
raise NannyNag(start[0], msg, line)
indents.append(thisguy)
if type == INDENT:
check_equal = 0
thisguy = Whitespace(token)
if not indents[-1].less(thisguy):
witness = indents[-1].not_less_witness(thisguy)
msg = "indent not greater e.g. " + format_witnesses(witness)
raise NannyNag(start[0], msg, line)
indents.append(thisguy)
elif type == DEDENT:
del indents[-1]
elif type == DEDENT:
del indents[-1]
elif type == NEWLINE:
if nesting_level == 0:
check_equal = 1
elif type == NEWLINE:
if nesting_level == 0:
check_equal = 1
elif type == COMMENT:
pass
elif type == COMMENT:
pass
elif check_equal:
check_equal = 0
thisguy = Whitespace(line)
if not indents[-1].equal(thisguy):
witness = indents[-1].not_equal_witness(thisguy)
msg = "indent not equal e.g. " + format_witnesses(witness)
raise NannyNag(start[0], msg, line)
elif check_equal:
check_equal = 0
thisguy = Whitespace(line)
if not indents[-1].equal(thisguy):
witness = indents[-1].not_equal_witness(thisguy)
msg = "indent not equal e.g. " + format_witnesses(witness)
raise NannyNag(start[0], msg, line)
if type == OP and token in ('{', '[', '('):
nesting_level = nesting_level + 1
if type == OP and token in ('{', '[', '('):
nesting_level = nesting_level + 1
elif type == OP and token in ('}', ']', ')'):
if nesting_level == 0:
raise NannyNag(start[0],
"unbalanced bracket '" + token + "'",
line)
nesting_level = nesting_level - 1
elif type == OP and token in ('}', ']', ')'):
if nesting_level == 0:
raise NannyNag(start[0],
"unbalanced bracket '" + token + "'",
line)
nesting_level = nesting_level - 1
if __name__ == '__main__':
main()

6
Lib/telnetlib.py
View File

@ -11,7 +11,7 @@ Example:
>>> print tn.read_all()
Login Name TTY Idle When Where
guido Guido van Rossum pts/2 <Dec 2 11:10> snag.cnri.reston..
>>>
Note that read_all() won't read until eof -- it just reads some data
@ -250,7 +250,7 @@ class Telnet:
def read_very_eager(self):
"""Read everything that's possible without blocking in I/O (eager).
Raise EOFError if connection closed and no cooked data
available. Return '' if no cooked data available otherwise.
Don't block unless in the midst of an IAC sequence.
@ -278,7 +278,7 @@ class Telnet:
def read_lazy(self):
"""Process and return data that's already in the queues (lazy).
Raise EOFError if connection closed and no data available.
Return '' if no cooked data available otherwise. Don't block
unless in the midst of an IAC sequence.

50
Lib/tempfile.py
View File

@ -26,10 +26,10 @@ def gettempdir():
elif os.name == 'mac':
import macfs, MACFS
try:
refnum, dirid = macfs.FindFolder(MACFS.kOnSystemDisk,
MACFS.kTemporaryFolderType, 1)
dirname = macfs.FSSpec((refnum, dirid, '')).as_pathname()
attempdirs.insert(0, dirname)
refnum, dirid = macfs.FindFolder(MACFS.kOnSystemDisk,
MACFS.kTemporaryFolderType, 1)
dirname = macfs.FSSpec((refnum, dirid, '')).as_pathname()
attempdirs.insert(0, dirname)
except macfs.error:
pass
for envname in 'TMPDIR', 'TEMP', 'TMP':
@ -38,27 +38,27 @@ def gettempdir():
testfile = gettempprefix() + 'test'
for dir in attempdirs:
try:
filename = os.path.join(dir, testfile)
if os.name == 'posix':
try:
fd = os.open(filename, os.O_RDWR|os.O_CREAT|os.O_EXCL, 0700)
except OSError:
pass
else:
fp = os.fdopen(fd, 'w')
fp.write('blat')
fp.close()
os.unlink(filename)
del fp, fd
tempdir = dir
break
else:
fp = open(filename, 'w')
fp.write('blat')
fp.close()
os.unlink(filename)
tempdir = dir
break
filename = os.path.join(dir, testfile)
if os.name == 'posix':
try:
fd = os.open(filename, os.O_RDWR|os.O_CREAT|os.O_EXCL, 0700)
except OSError:
pass
else:
fp = os.fdopen(fd, 'w')
fp.write('blat')
fp.close()
os.unlink(filename)
del fp, fd
tempdir = dir
break
else:
fp = open(filename, 'w')
fp.write('blat')
fp.close()
os.unlink(filename)
tempdir = dir
break
except IOError:
pass
if tempdir is None:

6
Lib/threading.py
View File

@ -65,7 +65,7 @@ def RLock(*args, **kwargs):
return apply(_RLock, args, kwargs)
class _RLock(_Verbose):
def __init__(self, verbose=None):
_Verbose.__init__(self, verbose)
self.__block = _allocate_lock()
@ -440,7 +440,7 @@ class Thread(_Verbose):
def isAlive(self):
assert self.__initialized, "Thread.__init__() not called"
return self.__started and not self.__stopped
def isDaemon(self):
assert self.__initialized, "Thread.__init__() not called"
return self.__daemonic
@ -496,7 +496,7 @@ def _pickSomeNonDaemonThread():
# when we exit (conform previous semantics).
class _DummyThread(Thread):
def __init__(self):
Thread.__init__(self, name=_newname("Dummy-%d"))
self._Thread__started = 1

88
Lib/toaiff.py
View File

@ -54,51 +54,51 @@ uncompress.append('uncompress', '--')
class error(Exception):
pass
pass
def toaiff(filename):
temps = []
ret = None
try:
ret = _toaiff(filename, temps)
finally:
for temp in temps[:]:
if temp != ret:
try:
os.unlink(temp)
except os.error:
pass
temps.remove(temp)
return ret
temps = []
ret = None
try:
ret = _toaiff(filename, temps)
finally:
for temp in temps[:]:
if temp != ret:
try:
os.unlink(temp)
except os.error:
pass
temps.remove(temp)
return ret
def _toaiff(filename, temps):
if filename[-2:] == '.Z':
fname = tempfile.mktemp()
temps.append(fname)
sts = uncompress.copy(filename, fname)
if sts:
raise error, filename + ': uncompress failed'
else:
fname = filename
try:
ftype = sndhdr.whathdr(fname)
if ftype:
ftype = ftype[0] # All we're interested in
except IOError:
if type(msg) == type(()) and len(msg) == 2 and \
type(msg[0]) == type(0) and type(msg[1]) == type(''):
msg = msg[1]
if type(msg) != type(''):
msg = `msg`
raise error, filename + ': ' + msg
if ftype == 'aiff':
return fname
if ftype is None or not table.has_key(ftype):
raise error, \
filename + ': unsupported audio file type ' + `ftype`
temp = tempfile.mktemp()
temps.append(temp)
sts = table[ftype].copy(fname, temp)
if sts:
raise error, filename + ': conversion to aiff failed'
return temp
if filename[-2:] == '.Z':
fname = tempfile.mktemp()
temps.append(fname)
sts = uncompress.copy(filename, fname)
if sts:
raise error, filename + ': uncompress failed'
else:
fname = filename
try:
ftype = sndhdr.whathdr(fname)
if ftype:
ftype = ftype[0] # All we're interested in
except IOError:
if type(msg) == type(()) and len(msg) == 2 and \
type(msg[0]) == type(0) and type(msg[1]) == type(''):
msg = msg[1]
if type(msg) != type(''):
msg = `msg`
raise error, filename + ': ' + msg
if ftype == 'aiff':
return fname
if ftype is None or not table.has_key(ftype):
raise error, \
filename + ': unsupported audio file type ' + `ftype`
temp = tempfile.mktemp()
temps.append(temp)
sts = table[ftype].copy(fname, temp)
if sts:
raise error, filename + ': conversion to aiff failed'
return temp

1
Lib/tokenize.py
View File

@ -215,4 +215,3 @@ if __name__ == '__main__': # testing
import sys
if len(sys.argv) > 1: tokenize(open(sys.argv[1]).readline)
else: tokenize(sys.stdin.readline)

466
Lib/traceback.py
View File

@ -6,273 +6,273 @@ import sys
import types
def _print(file, str='', terminator='\n'):
file.write(str+terminator)
file.write(str+terminator)
def print_list(extracted_list, file=None):
"""Print the list of tuples as returned by extract_tb() or
extract_stack() as a formatted stack trace to the given file."""
if not file:
file = sys.stderr
for filename, lineno, name, line in extracted_list:
_print(file,
' File "%s", line %d, in %s' % (filename,lineno,name))
if line:
_print(file, ' %s' % string.strip(line))
"""Print the list of tuples as returned by extract_tb() or
extract_stack() as a formatted stack trace to the given file."""
if not file:
file = sys.stderr
for filename, lineno, name, line in extracted_list:
_print(file,
' File "%s", line %d, in %s' % (filename,lineno,name))
if line:
_print(file, ' %s' % string.strip(line))
def format_list(extracted_list):
"""Given a list of tuples as returned by extract_tb() or
extract_stack(), return a list of strings ready for printing.
Each string in the resulting list corresponds to the item with
the same index in the argument list. Each string ends in a
newline; the strings may contain internal newlines as well, for
those items whose source text line is not None."""
list = []
for filename, lineno, name, line in extracted_list:
item = ' File "%s", line %d, in %s\n' % (filename,lineno,name)
if line:
item = item + ' %s\n' % string.strip(line)
list.append(item)
return list
"""Given a list of tuples as returned by extract_tb() or
extract_stack(), return a list of strings ready for printing.
Each string in the resulting list corresponds to the item with
the same index in the argument list. Each string ends in a
newline; the strings may contain internal newlines as well, for
those items whose source text line is not None."""
list = []
for filename, lineno, name, line in extracted_list:
item = ' File "%s", line %d, in %s\n' % (filename,lineno,name)
if line:
item = item + ' %s\n' % string.strip(line)
list.append(item)
return list
def print_tb(tb, limit=None, file=None):
"""Print up to 'limit' stack trace entries from the traceback 'tb'.
If 'limit' is omitted or None, all entries are printed. If 'file' is
omitted or None, the output goes to sys.stderr; otherwise 'file'
should be an open file or file-like object with a write() method."""
if not file:
file = sys.stderr
if limit is None:
if hasattr(sys, 'tracebacklimit'):
limit = sys.tracebacklimit
n = 0
while tb is not None and (limit is None or n < limit):
f = tb.tb_frame
lineno = tb_lineno(tb)
co = f.f_code
filename = co.co_filename
name = co.co_name
_print(file,
' File "%s", line %d, in %s' % (filename,lineno,name))
line = linecache.getline(filename, lineno)
if line: _print(file, ' ' + string.strip(line))
tb = tb.tb_next
n = n+1
"""Print up to 'limit' stack trace entries from the traceback 'tb'.
If 'limit' is omitted or None, all entries are printed. If 'file' is
omitted or None, the output goes to sys.stderr; otherwise 'file'
should be an open file or file-like object with a write() method."""
if not file:
file = sys.stderr
if limit is None:
if hasattr(sys, 'tracebacklimit'):
limit = sys.tracebacklimit
n = 0
while tb is not None and (limit is None or n < limit):
f = tb.tb_frame
lineno = tb_lineno(tb)
co = f.f_code
filename = co.co_filename
name = co.co_name
_print(file,
' File "%s", line %d, in %s' % (filename,lineno,name))
line = linecache.getline(filename, lineno)
if line: _print(file, ' ' + string.strip(line))
tb = tb.tb_next
n = n+1
def format_tb(tb, limit = None):
"""A shorthand for 'format_list(extract_stack(f, limit))."""
return format_list(extract_tb(tb, limit))
"""A shorthand for 'format_list(extract_stack(f, limit))."""
return format_list(extract_tb(tb, limit))
def extract_tb(tb, limit = None):
"""Return a list of up to 'limit' pre-processed stack trace entries
extracted from the traceback object 'traceback'. This is useful for
alternate formatting of stack traces. If 'limit' is omitted or None,
all entries are extracted. A pre-processed stack trace entry is a
quadruple (filename, line number, function name, text) representing
the information that is usually printed for a stack trace. The text
is a string with leading and trailing whitespace stripped; if the
source is not available it is None."""
if limit is None:
if hasattr(sys, 'tracebacklimit'):
limit = sys.tracebacklimit
list = []
n = 0
while tb is not None and (limit is None or n < limit):
f = tb.tb_frame
lineno = tb_lineno(tb)
co = f.f_code
filename = co.co_filename
name = co.co_name
line = linecache.getline(filename, lineno)
if line: line = string.strip(line)
else: line = None
list.append((filename, lineno, name, line))
tb = tb.tb_next
n = n+1
return list
"""Return a list of up to 'limit' pre-processed stack trace entries
extracted from the traceback object 'traceback'. This is useful for
alternate formatting of stack traces. If 'limit' is omitted or None,
all entries are extracted. A pre-processed stack trace entry is a
quadruple (filename, line number, function name, text) representing
the information that is usually printed for a stack trace. The text
is a string with leading and trailing whitespace stripped; if the
source is not available it is None."""
if limit is None:
if hasattr(sys, 'tracebacklimit'):
limit = sys.tracebacklimit
list = []
n = 0
while tb is not None and (limit is None or n < limit):
f = tb.tb_frame
lineno = tb_lineno(tb)
co = f.f_code
filename = co.co_filename
name = co.co_name
line = linecache.getline(filename, lineno)
if line: line = string.strip(line)
else: line = None
list.append((filename, lineno, name, line))
tb = tb.tb_next
n = n+1
return list
def print_exception(etype, value, tb, limit=None, file=None):
"""Print exception information and up to 'limit' stack trace entries
from the traceback 'tb' to 'file'. This differs from print_tb() in
the following ways: (1) if traceback is not None, it prints a header
"Traceback (most recent call last):"; (2) it prints the exception type and
value after the stack trace; (3) if type is SyntaxError and value has
the appropriate format, it prints the line where the syntax error
occurred with a caret on the next line indicating the approximate
position of the error."""
if not file:
file = sys.stderr
if tb:
_print(file, 'Traceback (most recent call last):')
print_tb(tb, limit, file)
lines = format_exception_only(etype, value)
for line in lines[:-1]:
_print(file, line, ' ')
_print(file, lines[-1], '')
"""Print exception information and up to 'limit' stack trace entries
from the traceback 'tb' to 'file'. This differs from print_tb() in
the following ways: (1) if traceback is not None, it prints a header
"Traceback (most recent call last):"; (2) it prints the exception type and
value after the stack trace; (3) if type is SyntaxError and value has
the appropriate format, it prints the line where the syntax error
occurred with a caret on the next line indicating the approximate
position of the error."""
if not file:
file = sys.stderr
if tb:
_print(file, 'Traceback (most recent call last):')
print_tb(tb, limit, file)
lines = format_exception_only(etype, value)
for line in lines[:-1]:
_print(file, line, ' ')
_print(file, lines[-1], '')
def format_exception(etype, value, tb, limit = None):
"""Format a stack trace and the exception information. The arguments
have the same meaning as the corresponding arguments to
print_exception(). The return value is a list of strings, each
ending in a newline and some containing internal newlines. When
these lines are concatenated and printed, exactly the same text is
printed as does print_exception()."""
if tb:
list = ['Traceback (most recent call last):\n']
list = list + format_tb(tb, limit)
else:
list = []
list = list + format_exception_only(etype, value)
return list
"""Format a stack trace and the exception information. The arguments
have the same meaning as the corresponding arguments to
print_exception(). The return value is a list of strings, each
ending in a newline and some containing internal newlines. When
these lines are concatenated and printed, exactly the same text is
printed as does print_exception()."""
if tb:
list = ['Traceback (most recent call last):\n']
list = list + format_tb(tb, limit)
else:
list = []
list = list + format_exception_only(etype, value)
return list
def format_exception_only(etype, value):
"""Format the exception part of a traceback. The arguments are the
exception type and value such as given by sys.last_type and
sys.last_value. The return value is a list of strings, each ending
in a newline. Normally, the list contains a single string;
however, for SyntaxError exceptions, it contains several lines that
(when printed) display detailed information about where the syntax
error occurred. The message indicating which exception occurred is
the always last string in the list."""
list = []
if type(etype) == types.ClassType:
stype = etype.__name__
else:
stype = etype
if value is None:
list.append(str(stype) + '\n')
else:
if etype is SyntaxError:
try:
msg, (filename, lineno, offset, line) = value
except:
pass
else:
if not filename: filename = "<string>"
list.append(' File "%s", line %d\n' %
(filename, lineno))
i = 0
while i < len(line) and \
line[i] in string.whitespace:
i = i+1
list.append(' %s\n' % string.strip(line))
s = ' '
for c in line[i:offset-1]:
if c in string.whitespace:
s = s + c
else:
s = s + ' '
list.append('%s^\n' % s)
value = msg
s = _some_str(value)
if s:
list.append('%s: %s\n' % (str(stype), s))
else:
list.append('%s\n' % str(stype))
return list
"""Format the exception part of a traceback. The arguments are the
exception type and value such as given by sys.last_type and
sys.last_value. The return value is a list of strings, each ending
in a newline. Normally, the list contains a single string;
however, for SyntaxError exceptions, it contains several lines that
(when printed) display detailed information about where the syntax
error occurred. The message indicating which exception occurred is
the always last string in the list."""
list = []
if type(etype) == types.ClassType:
stype = etype.__name__
else:
stype = etype
if value is None:
list.append(str(stype) + '\n')
else:
if etype is SyntaxError:
try:
msg, (filename, lineno, offset, line) = value
except:
pass
else:
if not filename: filename = "<string>"
list.append(' File "%s", line %d\n' %
(filename, lineno))
i = 0
while i < len(line) and \
line[i] in string.whitespace:
i = i+1
list.append(' %s\n' % string.strip(line))
s = ' '
for c in line[i:offset-1]:
if c in string.whitespace:
s = s + c
else:
s = s + ' '
list.append('%s^\n' % s)
value = msg
s = _some_str(value)
if s:
list.append('%s: %s\n' % (str(stype), s))
else:
list.append('%s\n' % str(stype))
return list
def _some_str(value):
try:
return str(value)
except:
return '<unprintable %s object>' % type(value).__name__
try:
return str(value)
except:
return '<unprintable %s object>' % type(value).__name__
def print_exc(limit=None, file=None):
"""This is a shorthand for 'print_exception(sys.exc_type,
sys.exc_value, sys.exc_traceback, limit, file)'.
(In fact, it uses sys.exc_info() to retrieve the same information
in a thread-safe way.)"""
if not file:
file = sys.stderr
try:
etype, value, tb = sys.exc_info()
print_exception(etype, value, tb, limit, file)
finally:
etype = value = tb = None
"""This is a shorthand for 'print_exception(sys.exc_type,
sys.exc_value, sys.exc_traceback, limit, file)'.
(In fact, it uses sys.exc_info() to retrieve the same information
in a thread-safe way.)"""
if not file:
file = sys.stderr
try:
etype, value, tb = sys.exc_info()
print_exception(etype, value, tb, limit, file)
finally:
etype = value = tb = None
def print_last(limit=None, file=None):
"""This is a shorthand for 'print_exception(sys.last_type,
sys.last_value, sys.last_traceback, limit, file)'."""
if not file:
file = sys.stderr
print_exception(sys.last_type, sys.last_value, sys.last_traceback,
limit, file)
"""This is a shorthand for 'print_exception(sys.last_type,
sys.last_value, sys.last_traceback, limit, file)'."""
if not file:
file = sys.stderr
print_exception(sys.last_type, sys.last_value, sys.last_traceback,
limit, file)
def print_stack(f=None, limit=None, file=None):
"""This function prints a stack trace from its invocation point.
The optional 'f' argument can be used to specify an alternate stack
frame at which to start. The optional 'limit' and 'file' arguments
have the same meaning as for print_exception()."""
if f is None:
try:
raise ZeroDivisionError
except ZeroDivisionError:
f = sys.exc_info()[2].tb_frame.f_back
print_list(extract_stack(f, limit), file)
"""This function prints a stack trace from its invocation point.
The optional 'f' argument can be used to specify an alternate stack
frame at which to start. The optional 'limit' and 'file' arguments
have the same meaning as for print_exception()."""
if f is None:
try:
raise ZeroDivisionError
except ZeroDivisionError:
f = sys.exc_info()[2].tb_frame.f_back
print_list(extract_stack(f, limit), file)
def format_stack(f=None, limit=None):
"""A shorthand for 'format_list(extract_stack(f, limit))'."""
if f is None:
try:
raise ZeroDivisionError
except ZeroDivisionError:
f = sys.exc_info()[2].tb_frame.f_back
return format_list(extract_stack(f, limit))
"""A shorthand for 'format_list(extract_stack(f, limit))'."""
if f is None:
try:
raise ZeroDivisionError
except ZeroDivisionError:
f = sys.exc_info()[2].tb_frame.f_back
return format_list(extract_stack(f, limit))
def extract_stack(f=None, limit = None):
"""Extract the raw traceback from the current stack frame. The
return value has the same format as for extract_tb(). The optional
'f' and 'limit' arguments have the same meaning as for print_stack().
Each item in the list is a quadruple (filename, line number,
function name, text), and the entries are in order from oldest
to newest stack frame."""
if f is None:
try:
raise ZeroDivisionError
except ZeroDivisionError:
f = sys.exc_info()[2].tb_frame.f_back
if limit is None:
if hasattr(sys, 'tracebacklimit'):
limit = sys.tracebacklimit
list = []
n = 0
while f is not None and (limit is None or n < limit):
lineno = f.f_lineno # XXX Too bad if -O is used
co = f.f_code
filename = co.co_filename
name = co.co_name
line = linecache.getline(filename, lineno)
if line: line = string.strip(line)
else: line = None
list.append((filename, lineno, name, line))
f = f.f_back
n = n+1
list.reverse()
return list
"""Extract the raw traceback from the current stack frame. The
return value has the same format as for extract_tb(). The optional
'f' and 'limit' arguments have the same meaning as for print_stack().
Each item in the list is a quadruple (filename, line number,
function name, text), and the entries are in order from oldest
to newest stack frame."""
if f is None:
try:
raise ZeroDivisionError
except ZeroDivisionError:
f = sys.exc_info()[2].tb_frame.f_back
if limit is None:
if hasattr(sys, 'tracebacklimit'):
limit = sys.tracebacklimit
list = []
n = 0
while f is not None and (limit is None or n < limit):
lineno = f.f_lineno # XXX Too bad if -O is used
co = f.f_code
filename = co.co_filename
name = co.co_name
line = linecache.getline(filename, lineno)
if line: line = string.strip(line)
else: line = None
list.append((filename, lineno, name, line))
f = f.f_back
n = n+1
list.reverse()
return list
def tb_lineno(tb):
"""Calculate the correct line number of the traceback given in tb
(even with -O on)."""
"""Calculate the correct line number of the traceback given in tb
(even with -O on)."""
# Coded by Marc-Andre Lemburg from the example of PyCode_Addr2Line()
# in compile.c.
# Revised version by Jim Hugunin to work with JPython too.
# Coded by Marc-Andre Lemburg from the example of PyCode_Addr2Line()
# in compile.c.
# Revised version by Jim Hugunin to work with JPython too.
c = tb.tb_frame.f_code
if not hasattr(c, 'co_lnotab'):
return tb.tb_lineno
c = tb.tb_frame.f_code
if not hasattr(c, 'co_lnotab'):
return tb.tb_lineno
tab = c.co_lnotab
line = c.co_firstlineno
stopat = tb.tb_lasti
addr = 0
for i in range(0, len(tab), 2):
addr = addr + ord(tab[i])
if addr > stopat:
break
line = line + ord(tab[i+1])
return line
tab = c.co_lnotab
line = c.co_firstlineno
stopat = tb.tb_lasti
addr = 0
for i in range(0, len(tab), 2):
addr = addr + ord(tab[i])
if addr > stopat:
break
line = line + ord(tab[i+1])
return line

35
Lib/tty.py
View File

@ -5,7 +5,7 @@
from TERMIOS import *
from termios import *
# Indexes for termios list.
# Indexes for termios list.
IFLAG = 0
OFLAG = 1
CFLAG = 2
@ -15,22 +15,21 @@ OSPEED = 5
CC = 6
def setraw(fd, when=TCSAFLUSH):
"""Put terminal into a raw mode."""
mode = tcgetattr(fd)
mode[IFLAG] = mode[IFLAG] & ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON)
mode[OFLAG] = mode[OFLAG] & ~(OPOST)
mode[CFLAG] = mode[CFLAG] & ~(CSIZE | PARENB)
mode[CFLAG] = mode[CFLAG] | CS8
mode[LFLAG] = mode[LFLAG] & ~(ECHO | ICANON | IEXTEN | ISIG)
mode[CC][VMIN] = 1
mode[CC][VTIME] = 0
tcsetattr(fd, when, mode)
"""Put terminal into a raw mode."""
mode = tcgetattr(fd)
mode[IFLAG] = mode[IFLAG] & ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON)
mode[OFLAG] = mode[OFLAG] & ~(OPOST)
mode[CFLAG] = mode[CFLAG] & ~(CSIZE | PARENB)
mode[CFLAG] = mode[CFLAG] | CS8
mode[LFLAG] = mode[LFLAG] & ~(ECHO | ICANON | IEXTEN | ISIG)
mode[CC][VMIN] = 1
mode[CC][VTIME] = 0
tcsetattr(fd, when, mode)
def setcbreak(fd, when=TCSAFLUSH):
"""Put terminal into a cbreak mode."""
mode = tcgetattr(fd)
mode[LFLAG] = mode[LFLAG] & ~(ECHO | ICANON)
mode[CC][VMIN] = 1
mode[CC][VTIME] = 0
tcsetattr(fd, when, mode)
"""Put terminal into a cbreak mode."""
mode = tcgetattr(fd)
mode[LFLAG] = mode[LFLAG] & ~(ECHO | ICANON)
mode[CC][VMIN] = 1
mode[CC][VTIME] = 0
tcsetattr(fd, when, mode)

142
Lib/tzparse.py
View File

@ -4,90 +4,90 @@
# XXX Only the typical form "XXXhhYYY;ddd/hh,ddd/hh" is currently supported.
tzpat = ('^([A-Z][A-Z][A-Z])([-+]?[0-9]+)([A-Z][A-Z][A-Z]);'
'([0-9]+)/([0-9]+),([0-9]+)/([0-9]+)$')
'([0-9]+)/([0-9]+),([0-9]+)/([0-9]+)$')
tzprog = None
def tzparse(tzstr):
"""Given a timezone spec, return a tuple of information
(tzname, delta, dstname, daystart, hourstart, dayend, hourend),
where 'tzname' is the name of the timezone, 'delta' is the offset
in hours from GMT, 'dstname' is the name of the daylight-saving
timezone, and 'daystart'/'hourstart' and 'dayend'/'hourend'
specify the starting and ending points for daylight saving time."""
global tzprog
if tzprog is None:
import re
tzprog = re.compile(tzpat)
match = tzprog.match(tzstr)
if not match:
raise ValueError, 'not the TZ syntax I understand'
subs = []
for i in range(1, 8):
subs.append(match.group(i))
for i in (1, 3, 4, 5, 6):
subs[i] = eval(subs[i])
[tzname, delta, dstname, daystart, hourstart, dayend, hourend] = subs
return (tzname, delta, dstname, daystart, hourstart, dayend, hourend)
"""Given a timezone spec, return a tuple of information
(tzname, delta, dstname, daystart, hourstart, dayend, hourend),
where 'tzname' is the name of the timezone, 'delta' is the offset
in hours from GMT, 'dstname' is the name of the daylight-saving
timezone, and 'daystart'/'hourstart' and 'dayend'/'hourend'
specify the starting and ending points for daylight saving time."""
global tzprog
if tzprog is None:
import re
tzprog = re.compile(tzpat)
match = tzprog.match(tzstr)
if not match:
raise ValueError, 'not the TZ syntax I understand'
subs = []
for i in range(1, 8):
subs.append(match.group(i))
for i in (1, 3, 4, 5, 6):
subs[i] = eval(subs[i])
[tzname, delta, dstname, daystart, hourstart, dayend, hourend] = subs
return (tzname, delta, dstname, daystart, hourstart, dayend, hourend)
def tzlocaltime(secs, params):
"""Given a Unix time in seconds and a tuple of information about
a timezone as returned by tzparse(), return the local time in the
form (year, month, day, hour, min, sec, yday, wday, tzname)."""
import time
(tzname, delta, dstname, daystart, hourstart, dayend, hourend) = params
year, month, days, hours, mins, secs, yday, wday, isdst = \
time.gmtime(secs - delta*3600)
if (daystart, hourstart) <= (yday+1, hours) < (dayend, hourend):
tzname = dstname
hours = hours + 1
return year, month, days, hours, mins, secs, yday, wday, tzname
"""Given a Unix time in seconds and a tuple of information about
a timezone as returned by tzparse(), return the local time in the
form (year, month, day, hour, min, sec, yday, wday, tzname)."""
import time
(tzname, delta, dstname, daystart, hourstart, dayend, hourend) = params
year, month, days, hours, mins, secs, yday, wday, isdst = \
time.gmtime(secs - delta*3600)
if (daystart, hourstart) <= (yday+1, hours) < (dayend, hourend):
tzname = dstname
hours = hours + 1
return year, month, days, hours, mins, secs, yday, wday, tzname
def tzset():
"""Determine the current timezone from the "TZ" environment variable."""
global tzparams, timezone, altzone, daylight, tzname
import os
tzstr = os.environ['TZ']
tzparams = tzparse(tzstr)
timezone = tzparams[1] * 3600
altzone = timezone - 3600
daylight = 1
tzname = tzparams[0], tzparams[2]
"""Determine the current timezone from the "TZ" environment variable."""
global tzparams, timezone, altzone, daylight, tzname
import os
tzstr = os.environ['TZ']
tzparams = tzparse(tzstr)
timezone = tzparams[1] * 3600
altzone = timezone - 3600
daylight = 1
tzname = tzparams[0], tzparams[2]
def isdst(secs):
"""Return true if daylight-saving time is in effect for the given
Unix time in the current timezone."""
import time
(tzname, delta, dstname, daystart, hourstart, dayend, hourend) = \
tzparams
year, month, days, hours, mins, secs, yday, wday, isdst = \
time.gmtime(secs - delta*3600)
return (daystart, hourstart) <= (yday+1, hours) < (dayend, hourend)
"""Return true if daylight-saving time is in effect for the given
Unix time in the current timezone."""
import time
(tzname, delta, dstname, daystart, hourstart, dayend, hourend) = \
tzparams
year, month, days, hours, mins, secs, yday, wday, isdst = \
time.gmtime(secs - delta*3600)
return (daystart, hourstart) <= (yday+1, hours) < (dayend, hourend)
tzset()
def localtime(secs):
"""Get the local time in the current timezone."""
return tzlocaltime(secs, tzparams)
"""Get the local time in the current timezone."""
return tzlocaltime(secs, tzparams)
def test():
from time import asctime, gmtime
import time, sys
now = time.time()
x = localtime(now)
tm = x[:-1] + (0,)
print 'now =', now, '=', asctime(tm), x[-1]
now = now - now % (24*3600)
if sys.argv[1:]: now = now + eval(sys.argv[1])
x = gmtime(now)
tm = x[:-1] + (0,)
print 'gmtime =', now, '=', asctime(tm), 'yday =', x[-2]
jan1 = now - x[-2]*24*3600
x = localtime(jan1)
tm = x[:-1] + (0,)
print 'jan1 =', jan1, '=', asctime(tm), x[-1]
for d in range(85, 95) + range(265, 275):
t = jan1 + d*24*3600
x = localtime(t)
tm = x[:-1] + (0,)
print 'd =', d, 't =', t, '=', asctime(tm), x[-1]
from time import asctime, gmtime
import time, sys
now = time.time()
x = localtime(now)
tm = x[:-1] + (0,)
print 'now =', now, '=', asctime(tm), x[-1]
now = now - now % (24*3600)
if sys.argv[1:]: now = now + eval(sys.argv[1])
x = gmtime(now)
tm = x[:-1] + (0,)
print 'gmtime =', now, '=', asctime(tm), 'yday =', x[-2]
jan1 = now - x[-2]*24*3600
x = localtime(jan1)
tm = x[:-1] + (0,)
print 'jan1 =', jan1, '=', asctime(tm), x[-1]
for d in range(85, 95) + range(265, 275):
t = jan1 + d*24*3600
x = localtime(t)
tm = x[:-1] + (0,)
print 'd =', d, 't =', t, '=', asctime(tm), x[-1]