macmodulefinder.py :  » Language-Interface » ChinesePython » chinesepython2.1.3-0.4 » Mac » Tools » macfreeze » Python Open Source

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Python Open Source » Language Interface » ChinesePython 
ChinesePython » chinesepython2.1.3 0.4 » Mac » Tools » macfreeze » macmodulefinder.py
"""macmodulefinder - Find modules used in a script. Only slightly
mac-specific, really."""

import sys
import os

import directives

try:
  # This will work if we are frozen ourselves
  import modulefinder
except ImportError:
  # And this will work otherwise
  _FREEZEDIR=os.path.join(sys.prefix, ':Tools:freeze')
  sys.path.insert(0, _FREEZEDIR)
  import modulefinder

#
# Modules that must be included, and modules that need not be included
# (but are if they are found)
#
MAC_INCLUDE_MODULES=['site', 'macfsn']
MAC_MAYMISS_MODULES=['posix', 'os2', 'nt', 'ntpath', 'dos', 'dospath', 
    'win32api', 'ce', '_winreg',
    'nturl2path', 'pwd', 'sitecustomize',
    'org.python.core',
    'riscos', 'riscosenviron', 'riscospath'
    ]

# An exception:
Missing="macmodulefinder.Missing"

class Module(modulefinder.Module):
  
  def gettype(self):
    """Return type of module"""
    if self.__path__:
      return 'package'
    if self.__code__:
      return 'module'
    if self.__file__:
      return 'dynamic'
    return 'builtin'

class ModuleFinder(modulefinder.ModuleFinder):

    def add_module(self, fqname):
        if self.modules.has_key(fqname):
            return self.modules[fqname]
        self.modules[fqname] = m = Module(fqname)
        return m
        
def process(program, modules=None, module_files=None, debug=0):
  if modules is None:
    modules = []
  if module_files is None:
    module_files = []
  missing = []
  #
  # Add the standard modules needed for startup
  #
  modules = modules + MAC_INCLUDE_MODULES
  #
  # search the main source for directives
  #
  extra_modules, exclude_modules, optional_modules, extra_path = \
      directives.findfreezedirectives(program)
  for m in extra_modules:
    if os.sep in m:
      # It is a file
      module_files.append(m)
    else:
      modules.append(m)
    # collect all modules of the program
  path = sys.path[:]
  dir = os.path.dirname(program)
  path[0] = dir  # "current dir"
  path = extra_path + path
  #
  # Create the module finder and let it do its work
  #
  modfinder = ModuleFinder(path, 
      excludes=exclude_modules, debug=debug)
  for m in modules:
    modfinder.import_hook(m)
  for m in module_files:
    modfinder.load_file(m)
  modfinder.run_script(program)
  module_dict = modfinder.modules
  #
  # Tell the user about missing modules
  #
  maymiss = exclude_modules + optional_modules + MAC_MAYMISS_MODULES
  for m in modfinder.badmodules.keys():
    if not m in maymiss:
      if debug > 0:
        print 'Missing', m
      missing.append(m)
  #
  # Warn the user about unused builtins
  #
  for m in sys.builtin_module_names:
    if m in ('__main__', '__builtin__'):
      pass
    elif not module_dict.has_key(m):
      if debug > 0:
        print 'Unused', m
    elif module_dict[m].gettype() != 'builtin':
      # XXXX Can this happen?
      if debug > 0:
        print 'Conflict', m
  return module_dict, missing
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