All standard module in python
__future__ asynchat help_about runscript
__main__ asyncio history sched
_abc asyncore hmac scrolledlist
_ast atexit html search
_asyncio audioop http searchbase
_bisect autocomplete hyperparser searchengine
_blake2 autocomplete_w idle secrets
_bootlocale autoexpand idle_test select
_bz2 base64 idlelib selectors
_codecs bdb imaplib setuptools
_codecs_cn binascii imghdr shelve
_codecs_hk binhex imp shlex
_codecs_iso2022 bisect importlib shutil
_codecs_jp browser inspect sidebar
_codecs_kr builtins io signal
_codecs_tw bz2 iomenu site
_collections cProfile ipaddress smtpd
_collections_abc calendar itertools smtplib
_compat_pickle calltip json sndhdr
_compression calltip_w keyword socket
_contextvars cgi lib2to3 socketserver
_csv cgitb linecache sqlite3
_ctypes chunk locale squeezer
_ctypes_test cmath logging sre_compile
_datetime cmd lzma sre_constants
_decimal code macosx sre_parse
_distutils_hack codecontext mailbox ssl
_dummy_thread codecs mailcap stackviewer
_elementtree codeop mainmenu stat
_functools collections marshal statistics
_hashlib colorizer math statusbar
_heapq colorsys mimetypes string
_imp compileall mmap stringprep
_io concurrent modulefinder struct
_json config msilib subprocess
_locale config_key msvcrt sunau
_lsprof configdialog multicall symbol
_lzma configparser multiprocessing symtable
_markupbase contextlib netrc sys
_md5 contextvars nntplib sysconfig
_msi copy nt tabnanny
_multibytecodec copyreg ntpath tarfile
_multiprocessing crypt nturl2path telnetlib
_opcode csv numbers tempfile