Request.has_header(header) Return whether the instance has the named header (checks both regular and unredirected).

oss_audio_device.mode The I/O mode for the file, either "r", "rw", or "w".

with_prefixlen

operator.__setitem__(a, b, c) Set the value of a at index b to c.

stringprep.in_table_c9(code) Determine whether code is in tableC.9 (Tagging characters).

install_scripts(context, path) path is the path to a directory that should contain subdirectories “common”, “posix”, “nt”, each containing scripts destined for the bin directory in the environment. The contents of “common” and the directory corresponding to os.name are copied after some text replacement of placeholders: __VENV_DIR__ is replaced with the absolute path of the environment directory. __VENV_NAME__ is replaced with the environment name (final path segment of environment directo

ArgumentParser.add_mutually_exclusive_group(required=False) Create a mutually exclusive group. argparse will make sure that only one of the arguments in the mutually exclusive group was present on the command line: >>> parser = argparse.ArgumentParser(prog='PROG') >>> group = parser.add_mutually_exclusive_group() >>> group.add_argument('--foo', action='store_true') >>> group.add_argument('--bar', action='store_false') >>> parser.parse_args(['--foo

math.acos(x) Return the arc cosine of x, in radians.

right_only Files and subdirectories only in b.

DefaultCookiePolicy.set_allowed_domains(allowed_domains) Set the sequence of allowed domains, or None.