def _read_code(self):
""" Returns the Python compiled code object for this file, if
it is available, or None if it is not. """
if self.fileType == FTPythonCompiled:
# It's a pyc file; just read it directly.
pycVfile = vfs.getFile(self.filename, False)
if pycVfile:
return self._loadPyc(pycVfile, None)
return None
elif self.fileType == FTCompiledModule:
return None
# It's a .py file (or an __init__.py file; same thing). Read
# the .pyc file if it is available and current; otherwise read
# the .py file and compile it.
pycFilename = Filename(self.filename)
pycFilename.setExtension(pycExtension)
pycVfile = vfs.getFile(pycFilename, False)
t_pyc = None
if pycVfile:
t_pyc = pycVfile.getTimestamp()
code = None
if t_pyc and t_pyc >= self.timestamp:
code = self._loadPyc(pycVfile, self.timestamp)
if not code:
source = self._read_source()
filename = Filename(self.filename)
filename.setExtension('py')
code = self._compile(filename, source)
return code
def _compile(self, filename, source):
""" Compiles the Python source code to a code object and
attempts to write it to an appropriate .pyc file. """
if source and source[-1] != '\n':
source = source + '\n'
code = __builtin__.compile(source, filename.cStr(), 'exec')
# try to cache the compiled code
pycFilename = Filename(filename)
pycFilename.setExtension(pycExtension)
try:
f = open(pycFilename, 'wb')
except IOError:
pass
else:
f.write('\0\0\0\0')
f.write(struct.pack('<I', self.timestamp))
f.write(marshal.dumps(code))
f.flush()
f.seek(0, 0)
f.write(imp.get_magic())
f.close()
return code
def _compile(self, filename, source):
""" Compiles the Python source code to a code object and
attempts to write it to an appropriate .pyc file. """
if source and source[-1] != '\n':
source = source + '\n'
code = __builtin__.compile(source, filename.cStr(), 'exec')
# try to cache the compiled code
pycFilename = Filename(filename)
pycFilename.setExtension(pycExtension)
try:
f = open(pycFilename, 'wb')
except IOError:
pass
else:
f.write('\0\0\0\0')
f.write(struct.pack('<I', self.timestamp))
f.write(marshal.dumps(code))
f.flush()
f.seek(0, 0)
f.write(imp.get_magic())
f.close()
return code
def _read_code(self):
""" Returns the Python compiled code object for this file, if
it is available, or None if it is not. """
if self.fileType == FTPythonCompiled:
# It's a pyc file; just read it directly.
pycVfile = vfs.getFile(self.filename, False)
if pycVfile:
return self._loadPyc(pycVfile, None)
return None
elif self.fileType == FTCompiledModule:
return None
# It's a .py file (or an __init__.py file; same thing). Read
# the .pyc file if it is available and current; otherwise read
# the .py file and compile it.
pycFilename = Filename(self.filename)
pycFilename.setExtension(pycExtension)
pycVfile = vfs.getFile(pycFilename, False)
t_pyc = None
if pycVfile:
t_pyc = pycVfile.getTimestamp()
code = None
if t_pyc and t_pyc >= self.timestamp:
code = self._loadPyc(pycVfile, self.timestamp)
if not code:
source = self._read_source()
filename = Filename(self.filename)
filename.setExtension('py')
code = self._compile(filename, source)
return code
def _read_source(self):
""" Returns the Python source for this file, if it is
available, or None if it is not. """
if self.fileType == FTPythonCompiled or \
self.fileType == FTCompiledModule:
return None
filename = Filename(self.filename)
filename.setExtension('py')
try:
file = open(filename, 'rU')
except IOError:
return None
return file.read()
def _read_source(self):
""" Returns the Python source for this file, if it is
available, or None if it is not. """
if self.fileType == FTPythonCompiled or \
self.fileType == FTCompiledModule:
return None
filename = Filename(self.filename)
filename.setExtension('py')
try:
file = open(filename, 'rU')
except IOError:
return None
return file.read()
def find_module(self, fullname):
basename = fullname.split('.')[-1]
path = Filename(self.dir_path, basename)
# First, look for Python files.
filename = Filename(path)
filename.setExtension('py')
vfile = vfs.getFile(filename, True)
if vfile:
return VFSLoader(self, vfile, filename, FTPythonSource)
# If there's no .py file, but there's a .pyc file, load that
# anyway.
filename = Filename(path)
filename.setExtension(pycExtension)
vfile = vfs.getFile(filename, True)
if vfile:
return VFSLoader(self, vfile, filename, FTPythonCompiled)
# Look for a compiled C/C++ module.
for desc in imp.get_suffixes():
if desc[2] != imp.C_EXTENSION:
continue
filename = Filename(path)
filename.setExtension(desc[0][1:])
vfile = vfs.getFile(filename, True)
if vfile:
return VFSLoader(self,
vfile,
filename,
FTCompiledModule,
desc=desc)
# Finally, consider a package, i.e. a directory containing
# __init__.py.
filename = Filename(path, '__init__.py')
vfile = vfs.getFile(filename, True)
if vfile:
return VFSLoader(self,
vfile,
filename,
FTPythonSource,
packagePath=path)
filename = Filename(path, '__init__.' + pycExtension)
vfile = vfs.getFile(filename, True)
if vfile:
return VFSLoader(self,
vfile,
filename,
FTPythonCompiled,
packagePath=path)
return None
def find_module(self, fullname):
basename = fullname.split('.')[-1]
path = Filename(self.dir_path, basename)
# First, look for Python files.
filename = Filename(path)
filename.setExtension('py')
vfile = vfs.getFile(filename, True)
if vfile:
return VFSLoader(self, vfile, filename, FTPythonSource)
# If there's no .py file, but there's a .pyc file, load that
# anyway.
filename = Filename(path)
filename.setExtension(pycExtension)
vfile = vfs.getFile(filename, True)
if vfile:
return VFSLoader(self, vfile, filename, FTPythonCompiled)
# Look for a compiled C/C++ module.
for desc in imp.get_suffixes():
if desc[2] != imp.C_EXTENSION:
continue
filename = Filename(path)
filename.setExtension(desc[0][1:])
vfile = vfs.getFile(filename, True)
if vfile:
return VFSLoader(self, vfile, filename, FTCompiledModule,
desc = desc)
# Finally, consider a package, i.e. a directory containing
# __init__.py.
filename = Filename(path, '__init__.py')
vfile = vfs.getFile(filename, True)
if vfile:
return VFSLoader(self, vfile, filename, FTPythonSource,
packagePath = path)
filename = Filename(path, '__init__.' + pycExtension)
vfile = vfs.getFile(filename, True)
if vfile:
return VFSLoader(self, vfile, filename, FTPythonCompiled,
packagePath = path)
return None
