Example #1
0
    def _import_compiled_module(self, fullname):
        """ Loads the compiled C/C++ shared object as a Python module,
        and returns it. """

        vfile = vfs.getFile(self.filename, False)

        # We can only import a compiled module if it already exists on
        # disk.  This means if it's a truly virtual file that has no
        # on-disk equivalent, we have to write it to a temporary file
        # first.
        if hasattr(vfile, 'getMount') and \
           isinstance(vfile.getMount(), VirtualFileMountSystem):
            # It's a real file.
            filename = self.filename
        else:
            # It's a virtual file.  Dump it.
            filename = Filename.temporary('', self.filename.getBasenameWoExtension(),
                                          '.' + self.filename.getExtension(),
                                          type = Filename.TDso)
            filename.setExtension(self.filename.getExtension())
            fin = open(vfile, 'rb')
            fout = open(filename, 'wb')
            data = fin.read(4096)
            while data:
                fout.write(data)
                data = fin.read(4096)
            fin.close()
            fout.close()

        module = imp.load_module(fullname, None, filename.toOsSpecific(),
                                 self.desc)
        module.__file__ = self.filename.cStr()
        return module
Example #2
0
    def _import_compiled_module(self, fullname):
        """ Loads the compiled C/C++ shared object as a Python module,
        and returns it. """

        vfile = vfs.getFile(self.filename, False)

        # We can only import a compiled module if it already exists on
        # disk.  This means if it's a truly virtual file that has no
        # on-disk equivalent, we have to write it to a temporary file
        # first.
        if hasattr(vfile, 'getMount') and \
           isinstance(vfile.getMount(), VirtualFileMountSystem):
            # It's a real file.
            filename = self.filename
        else:
            # It's a virtual file.  Dump it.
            filename = Filename.temporary(
                '',
                self.filename.getBasenameWoExtension(),
                '.' + self.filename.getExtension(),
                type=Filename.TDso)
            filename.setExtension(self.filename.getExtension())
            fin = open(vfile, 'rb')
            fout = open(filename, 'wb')
            data = fin.read(4096)
            while data:
                fout.write(data)
                data = fin.read(4096)
            fin.close()
            fout.close()

        module = imp.load_module(fullname, None, filename.toOsSpecific(),
                                 self.desc)
        module.__file__ = self.filename.cStr()
        return module
Example #3
0
    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
Example #4
0
    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
Example #5
0
 def _loadPyc(self, vfile, timestamp):
     """ Reads and returns the marshal data from a .pyc file. """
     code = None
     f = open(vfile, 'rb')
     if f.read(4) == imp.get_magic():
         t = struct.unpack('<I', f.read(4))[0]
         if not timestamp or t == timestamp:
             code = marshal.loads(f.read())
     f.close()
     return code
Example #6
0
 def _loadPyc(self, vfile, timestamp):
     """ Reads and returns the marshal data from a .pyc file. """
     code = None
     f = open(vfile, 'rb')
     if f.read(4) == imp.get_magic():
         t = struct.unpack('<I', f.read(4))[0]
         if not timestamp or t == timestamp:
             code = marshal.loads(f.read())
     f.close()
     return code
Example #7
0
 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()
Example #8
0
    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()
Example #9
0
 def getdata(self, path):
     path = Filename(self.dir_path, Filename.fromOsSpecific(path))
     f = open(path, 'rb')
     return f.read()
Example #10
0
 def getdata(self, path):
     path = Filename(self.dir_path, Filename.fromOsSpecific(path))
     f = open(path, 'rb')
     return f.read()