cython

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from libc.stdio cimport FILE
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cdef extern from "Python.h":
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    ###########################################################################
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    # Data marshalling support
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    ###########################################################################
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    const int Py_MARSHAL_VERSION
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    void PyMarshal_WriteLongToFile(long value, FILE *file, int version)
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    # Marshal a long integer, value, to file. This will only write the
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    # least-significant 32 bits of value, regardless of the size of the native
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    # long type. version indicates the file format.
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    void PyMarshal_WriteObjectToFile(object value, FILE *file, int version)
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    # Marshal a Python object, value, to file. version indicates the file
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    # format.
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    bytes PyMarshal_WriteObjectToString(object value, int version)
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    # Return value: New reference.
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    # Return a bytes object containing the marshalled representation of value.
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    # version indicates the file format.
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    long PyMarshal_ReadLongFromFile(FILE *file) except? -1
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    # Return a C long from the data stream in a FILE* opened for reading. Only
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    # a 32-bit value can be read in using this function, regardless of the
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    # native size of long.
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    # On error, sets the appropriate exception (EOFError) and returns -1.
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    int PyMarshal_ReadShortFromFile(FILE *file) except? -1
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    # Return a C short from the data stream in a FILE* opened for reading. Only
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    # a 16-bit value can be read in using this function, regardless of the
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    # native size of short.
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    # On error, sets the appropriate exception (EOFError) and returns -1.
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    object PyMarshal_ReadObjectFromFile(FILE *file)
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    # Return value: New reference.
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    # Return a Python object from the data stream in a FILE* opened for
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    # reading.
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    # On error, sets the appropriate exception (EOFError, ValueError or
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    # TypeError) and returns NULL.
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    object PyMarshal_ReadLastObjectFromFile(FILE *file)
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    # Return value: New reference.
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    # Return a Python object from the data stream in a FILE* opened for
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    # reading. Unlike PyMarshal_ReadObjectFromFile(), this function assumes
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    # that no further objects will be read from the file, allowing it to
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    # aggressively load file data into memory so that the de-serialization can
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    # operate from data in memory, rather than reading a byte at a time from the
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    # file. Only use these variant if you are certain that you won’t be reading
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    # anything else from the file.
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    # On error, sets the appropriate exception (EOFError, ValueError or
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    # TypeError) and returns NULL.
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    object PyMarshal_ReadObjectFromString(const char *data, Py_ssize_t len)
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    # Return value: New reference.
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    # Return a Python object from the data stream in a byte buffer containing
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    # len bytes pointed to by data.
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    # On error, sets the appropriate exception (EOFError, ValueError or
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    # TypeError) and returns NULL.
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