s3transfer/compat.py
def seekable(fileobj):
    """Backwards compat function to determine if a fileobj is seekable

    :param fileobj: The file-like object to determine if seekable

    :returns: True, if seekable. False, otherwise.
    """
    # If the fileobj has a seekable attr, try calling the seekable()
    # method on it.
    if hasattr(fileobj, 'seekable'):
        return fileobj.seekable()
    # If there is no seekable attr, check if the object can be seeked
    # or telled. If it can, try to seek to the current position.
    elif hasattr(fileobj, 'seek') and hasattr(fileobj, 'tell'):
        try:
            fileobj.seek(0, 1)
            return True
        except (OSError, IOError):
            # If an io related error was thrown then it is not seekable.
            return False
    # Else, the fileobj is not seekable
    return False
def seekable(fileobj):
    # If the fileobj has a seekable attr, try calling the seekable()
    # method on it.
    if hasattr(fileobj, 'seekable'):
        return fileobj.seekable()
    # If there is no seekable attr, check if the object can be seeked
    # or telled. If it can, try to seek to the current position.
    elif hasattr(fileobj, 'seek') and hasattr(fileobj, 'tell'):
        try:
            fileobj.seek(0, 1)
            return True
        except (OSError, IOError):
            # If an io related error was thrown then it is not seekable.
            return False
    # Else, the fileobj is not seekable
    return False
def seekable ( fileobj ) : # If the fileobj has a seekable attr, try calling the seekable() # method on it. if hasattr ( fileobj , 'seekable' ) : return fileobj . seekable ( ) # If there is no seekable attr, check if the object can be seeked # or telled. If it can, try to seek to the current position. elif hasattr ( fileobj , 'seek' ) and hasattr ( fileobj , 'tell' ) : try : fileobj . seek ( 0 , 1 ) return True except ( OSError , IOError ) : # If an io related error was thrown then it is not seekable. return False # Else, the fileobj is not seekable return False
Backwards compat function to determine if a fileobj is seekable

    :param fileobj: The file-like object to determine if seekable

    :returns: True, if seekable. False, otherwise.
Backwards compat function to determine if a fileobj is seekable