58 lines
2.8 KiB
Cython
58 lines
2.8 KiB
Cython
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"""
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From https://docs.python.org/3.9/c-api/file.html
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These APIs are a minimal emulation of the Python 2 C API for built-in file objects,
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which used to rely on the buffered I/O (FILE*) support from the C standard library.
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In Python 3, files and streams use the new io module, which defines several layers
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over the low-level unbuffered I/O of the operating system. The functions described
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below are convenience C wrappers over these new APIs, and meant mostly for internal
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error reporting in the interpreter;
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third-party code is advised to access the io APIs instead.
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"""
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cdef extern from "Python.h":
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###########################################################################
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# File Objects
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###########################################################################
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object PyFile_FromFd(int fd, const char *name, const char *mode, int buffering,
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const char *encoding, const char *errors, const char *newline, int closefd)
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# Return value: New reference.
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# Create a Python file object from the file descriptor of an already
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# opened file fd. The arguments name, encoding, errors and newline can be
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# NULL to use the defaults; buffering can be -1 to use the default. name
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# is ignored and kept for backward compatibility. Return NULL on failure.
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# For a more comprehensive description of the arguments, please refer to
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# the io.open() function documentation.
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# Warning: Since Python streams have their own buffering layer, mixing
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# them with OS-level file descriptors can produce various issues (such as
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# unexpected ordering of data).
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# Changed in version 3.2: Ignore name attribute.
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object PyFile_GetLine(object p, int n)
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# Return value: New reference.
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# Equivalent to p.readline([n]), this function reads one line from the
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# object p. p may be a file object or any object with a readline()
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# method. If n is 0, exactly one line is read, regardless of the length of
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# the line. If n is greater than 0, no more than n bytes will be read from
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# the file; a partial line can be returned. In both cases, an empty string
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# is returned if the end of the file is reached immediately. If n is less
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# than 0, however, one line is read regardless of length, but EOFError is
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# raised if the end of the file is reached immediately.
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int PyFile_WriteObject(object obj, object p, int flags) except? -1
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# Write object obj to file object p. The only supported flag for flags
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# is Py_PRINT_RAW; if given, the str() of the object is written instead of
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# the repr(). Return 0 on success or -1 on failure; the appropriate
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# exception will be set.
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int PyFile_WriteString(const char *s, object p) except? -1
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# Write string s to file object p. Return 0 on success or -1 on failure;
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# the appropriate exception will be set.
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enum: Py_PRINT_RAW
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