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pyclbr.pyc
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Python Compiled Bytecode
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2005-10-18
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# Source Generated with Decompyle++
# File: in.pyc (Python 2.4)
"""Parse a Python module and describe its classes and methods.
Parse enough of a Python file to recognize imports and class and
method definitions, and to find out the superclasses of a class.
The interface consists of a single function:
readmodule_ex(module [, path])
where module is the name of a Python module, and path is an optional
list of directories where the module is to be searched. If present,
path is prepended to the system search path sys.path. The return
value is a dictionary. The keys of the dictionary are the names of
the classes defined in the module (including classes that are defined
via the from XXX import YYY construct). The values are class
instances of the class Class defined here. One special key/value pair
is present for packages: the key '__path__' has a list as its value
which contains the package search path.
A class is described by the class Class in this module. Instances
of this class have the following instance variables:
module -- the module name
name -- the name of the class
super -- a list of super classes (Class instances)
methods -- a dictionary of methods
file -- the file in which the class was defined
lineno -- the line in the file on which the class statement occurred
The dictionary of methods uses the method names as keys and the line
numbers on which the method was defined as values.
If the name of a super class is not recognized, the corresponding
entry in the list of super classes is not a class instance but a
string giving the name of the super class. Since import statements
are recognized and imported modules are scanned as well, this
shouldn't happen often.
A function is described by the class Function in this module.
Instances of this class have the following instance variables:
module -- the module name
name -- the name of the class
file -- the file in which the class was defined
lineno -- the line in the file on which the class statement occurred
"""
import sys
import imp
import tokenize
from token import NAME, DEDENT, NEWLINE
from operator import itemgetter
__all__ = [
'readmodule',
'readmodule_ex',
'Class',
'Function']
_modules = { }
class Class:
'''Class to represent a Python class.'''
def __init__(self, module, name, super, file, lineno):
self.module = module
self.name = name
if super is None:
super = []
self.super = super
self.methods = { }
self.file = file
self.lineno = lineno
def _addmethod(self, name, lineno):
self.methods[name] = lineno
class Function:
'''Class to represent a top-level Python function'''
def __init__(self, module, name, file, lineno):
self.module = module
self.name = name
self.file = file
self.lineno = lineno
def readmodule(module, path = []):
'''Backwards compatible interface.
Call readmodule_ex() and then only keep Class objects from the
resulting dictionary.'''
dict = _readmodule(module, path)
res = { }
for key, value in dict.items():
if isinstance(value, Class):
res[key] = value
continue
return res
def readmodule_ex(module, path = []):
'''Read a module file and return a dictionary of classes.
Search for MODULE in PATH and sys.path, read and parse the
module and return a dictionary with one entry for each class
found in the module.
If INPACKAGE is true, it must be the dotted name of the package in
which we are searching for a submodule, and then PATH must be the
package search path; otherwise, we are searching for a top-level
module, and PATH is combined with sys.path.
'''
return _readmodule(module, path)
def _readmodule(module, path, inpackage = None):
'''Do the hard work for readmodule[_ex].'''
if inpackage:
fullmodule = '%s.%s' % (inpackage, module)
else:
fullmodule = module
if fullmodule in _modules:
return _modules[fullmodule]
dict = { }
if module in sys.builtin_module_names and not inpackage:
_modules[module] = dict
return dict
i = module.rfind('.')
if i >= 0:
package = module[:i]
submodule = module[i + 1:]
parent = _readmodule(package, path, inpackage)
if inpackage:
package = '%s.%s' % (inpackage, package)
return _readmodule(submodule, parent['__path__'], package)
f = None
_modules[fullmodule] = dict
if type != imp.PY_SOURCE:
f.close()
return dict
stack = []
g = tokenize.generate_tokens(f.readline)
try:
for tokentype, token, start, end, line in g:
if tokentype == DEDENT:
(lineno, thisindent) = start
while stack and stack[-1][1] >= thisindent:
del stack[-1]
continue
if token == 'def':
(lineno, thisindent) = start
while stack and stack[-1][1] >= thisindent:
del stack[-1]
(tokentype, meth_name, start, end, line) = g.next()
if tokentype != NAME:
continue
if stack:
cur_class = stack[-1][0]
if isinstance(cur_class, Class):
cur_class._addmethod(meth_name, lineno)
else:
dict[meth_name] = Function(module, meth_name, file, lineno)
stack.append((None, thisindent))
continue
if token == 'class':
(lineno, thisindent) = start
while stack and stack[-1][1] >= thisindent:
del stack[-1]
(tokentype, class_name, start, end, line) = g.next()
if tokentype != NAME:
continue
(tokentype, token, start, end, line) = g.next()
inherit = None
if token == '(':
names = []
level = 1
super = []
while True:
(tokentype, token, start, end, line) = g.next()
if token in (')', ',') and level == 1:
n = ''.join(super)
if n in dict:
n = dict[n]
else:
c = n.split('.')
if len(c) > 1:
m = c[-2]
c = c[-1]
if m in _modules:
d = _modules[m]
if c in d:
n = d[c]
names.append(n)
super = []
None if token == '(' else level == 0
if token == ',' and level == 1:
continue
super.append(token)
inherit = names
cur_class = Class(fullmodule, class_name, inherit, file, lineno)
if not stack:
dict[class_name] = cur_class
stack.append((cur_class, thisindent))
continue
if token == 'import' and start[1] == 0:
modules = _getnamelist(g)
for mod, mod2 in modules:
try:
if not inpackage:
_readmodule(mod, path)
else:
try:
_readmodule(mod, path, inpackage)
except ImportError:
_readmodule(mod, [])
continue
continue
if token == 'from' and start[1] == 0:
(mod, token) = _getname(g)
if not mod or token != 'import':
continue
names = _getnamelist(g)
try:
d = _readmodule(mod, path, inpackage)
except:
continue
for n, n2 in names:
if n in d:
if not n2:
pass
dict[n] = d[n]
continue
if n == '*':
for n in d:
if n[0] != '_':
dict[n] = d[n]
continue
except StopIteration:
pass
f.close()
return dict
def _getnamelist(g):
names = []
while True:
(name, token) = _getname(g)
if not name:
break
if token == 'as':
(name2, token) = _getname(g)
else:
name2 = None
names.append((name, name2))
while token != ',' and '\n' not in token:
(tokentype, token, start, end, line) = g.next()
if token != ',':
break
continue
return names
def _getname(g):
parts = []
(tokentype, token, start, end, line) = g.next()
if tokentype != NAME and token != '*':
return (None, token)
parts.append(token)
while True:
(tokentype, token, start, end, line) = g.next()
if token != '.':
break
(tokentype, token, start, end, line) = g.next()
if tokentype != NAME:
break
parts.append(token)
return ('.'.join(parts), token)
def _main():
import os as os
mod = sys.argv[1]
if os.path.exists(mod):
path = [
os.path.dirname(mod)]
mod = os.path.basename(mod)
if mod.lower().endswith('.py'):
mod = mod[:-3]
else:
path = []
dict = readmodule_ex(mod, path)
objs = dict.values()
objs.sort((lambda a, b: cmp(getattr(a, 'lineno', 0), getattr(b, 'lineno', 0))))
for obj in objs:
if isinstance(obj, Class):
print 'class', obj.name, obj.super, obj.lineno
methods = sorted(obj.methods.iteritems(), key = itemgetter(1))
for name, lineno in methods:
if name != '__path__':
print ' def', name, lineno
continue
if isinstance(obj, Function):
print 'def', obj.name, obj.lineno
continue
if __name__ == '__main__':
_main()