obspy.io.sac.core._is_sac_xy

_is_sac_xy(filename)[source]

Checks whether a file is alphanumeric SAC file or not.

Parameters:filename (str, open file, or file-like object) Alphanumeric SAC file to be checked.
Return type:bool
Returns:True if a alphanumeric SAC file.

Example

>>> _is_sac_xy('/path/to/testxy.sac')