# binascii - pydoc - phpman

Help on built-in module binascii:

## NAME
    binascii - Conversion between binary data and ASCII

## CLASSES
    builtins.Exception(builtins.BaseException)
        Incomplete
    builtins.ValueError(builtins.Exception)
        Error

### class Error
     |  Method resolution order:
     |      Error
     |      builtins.ValueError
     |      builtins.Exception
     |      builtins.BaseException
     |      builtins.object
     |
     |  Data descriptors defined here:
     |
     |  __weakref__
     |      list of weak references to the object (if defined)
     |
     |  ----------------------------------------------------------------------
     |  Methods inherited from builtins.ValueError:
     |
     |  __init__(self, /, *args, **kwargs)
     |      Initialize self.  See help(type(self)) for accurate signature.
     |
     |  ----------------------------------------------------------------------
     |  Static methods inherited from builtins.ValueError:
     |
     |  __new__(*args, **kwargs) from builtins.type
     |      Create and return a new object.  See help(type) for accurate signature.
     |
     |  ----------------------------------------------------------------------
     |  Methods inherited from builtins.BaseException:
     |
     |  __delattr__(self, name, /)
     |      Implement delattr(self, name).
     |
     |  __getattribute__(self, name, /)
     |      Return getattr(self, name).
     |
     |  __reduce__(...)
     |      Helper for pickle.
     |
     |  __repr__(self, /)
     |      Return repr(self).
     |
     |  __setattr__(self, name, value, /)
     |      Implement setattr(self, name, value).
     |
     |  __setstate__(...)
     |
     |  __str__(self, /)
     |      Return str(self).
     |
     |  with_traceback(...)
     |      Exception.with_traceback(tb) --
     |      set self.__traceback__ to tb and return self.
     |
     |  ----------------------------------------------------------------------
     |  Data descriptors inherited from builtins.BaseException:
     |
     |  __cause__
     |      exception cause
     |
     |  __context__
     |      exception context
     |
     |  __dict__
     |
     |  __suppress_context__
     |
     |  __traceback__
     |
     |  args

### class Incomplete
     |  Method resolution order:
     |      Incomplete
     |      builtins.Exception
     |      builtins.BaseException
     |      builtins.object
     |
     |  Data descriptors defined here:
     |
     |  __weakref__
     |      list of weak references to the object (if defined)
     |
     |  ----------------------------------------------------------------------
     |  Methods inherited from builtins.Exception:
     |
     |  __init__(self, /, *args, **kwargs)
     |      Initialize self.  See help(type(self)) for accurate signature.
     |
     |  ----------------------------------------------------------------------
     |  Static methods inherited from builtins.Exception:
     |
     |  __new__(*args, **kwargs) from builtins.type
     |      Create and return a new object.  See help(type) for accurate signature.
     |
     |  ----------------------------------------------------------------------
     |  Methods inherited from builtins.BaseException:
     |
     |  __delattr__(self, name, /)
     |      Implement delattr(self, name).
     |
     |  __getattribute__(self, name, /)
     |      Return getattr(self, name).
     |
     |  __reduce__(...)
     |      Helper for pickle.
     |
     |  __repr__(self, /)
     |      Return repr(self).
     |
     |  __setattr__(self, name, value, /)
     |      Implement setattr(self, name, value).
     |
     |  __setstate__(...)
     |
     |  __str__(self, /)
     |      Return str(self).
     |
     |  with_traceback(...)
     |      Exception.with_traceback(tb) --
     |      set self.__traceback__ to tb and return self.
     |
     |  ----------------------------------------------------------------------
     |  Data descriptors inherited from builtins.BaseException:
     |
     |  __cause__
     |      exception cause
     |
     |  __context__
     |      exception context
     |
     |  __dict__
     |
     |  __suppress_context__
     |
     |  __traceback__
     |
     |  args

## FUNCTIONS
### a2b_base64
        Decode a line of base64 data.

### a2b_hex
        Binary data of hexadecimal representation.

        hexstr must contain an even number of hex digits (upper or lower case).
        This function is also available as "unhexlify()".

### a2b_hqx
        Decode .hqx coding.

### a2b_qp
        Decode a string of qp-encoded data.

### a2b_uu
        Decode a line of uuencoded data.

### b2a_base64
        Base64-code line of data.

### b2a_hex
        Hexadecimal representation of binary data.

          sep
            An optional single character or byte to separate hex bytes.
          bytes_per_sep
            How many bytes between separators.  Positive values count from the
            right, negative values count from the left.

        The return value is a bytes object.  This function is also
        available as "hexlify()".

        Example:
        >>> binascii.b2a_hex(b'\xb9\x01\xef')
        b'b901ef'
        >>> binascii.hexlify(b'\xb9\x01\xef', ':')
        b'b9:01:ef'
        >>> binascii.b2a_hex(b'\xb9\x01\xef', b'_', 2)
        b'b9_01ef'

### b2a_hqx
        Encode .hqx data.

### b2a_qp
        Encode a string using quoted-printable encoding.

        On encoding, when istext is set, newlines are not encoded, and white
        space at end of lines is.  When istext is not set, \r and \n (CR/LF)
        are both encoded.  When quotetabs is set, space and tabs are encoded.

### b2a_uu
        Uuencode line of data.

### crc32
        Compute CRC-32 incrementally.

### crc_hqx
        Compute CRC-CCITT incrementally.

### hexlify
        Hexadecimal representation of binary data.

          sep
            An optional single character or byte to separate hex bytes.
          bytes_per_sep
            How many bytes between separators.  Positive values count from the
            right, negative values count from the left.

        The return value is a bytes object.  This function is also
        available as "b2a_hex()".

### rlecode_hqx
        Binhex RLE-code binary data.

### rledecode_hqx
        Decode hexbin RLE-coded string.

### unhexlify
        Binary data of hexadecimal representation.

        hexstr must contain an even number of hex digits (upper or lower case).

## FILE
    (built-in)