1 2#------------------------------------------------------------------------------ 3# $File: python,v 1.45 2022/07/24 23:59:37 christos Exp $ 4# python: file(1) magic for python 5# 6# Outlook puts """ too for urgent messages 7# From: David Necas <yeti@physics.muni.cz> 8# often the module starts with a multiline string 90 string/t """ Python script text executable 10# MAGIC as specified in Python/import.c (1.0 to 3.7) 11# and in Lib/importlib/_bootstrap_external.py (3.5+) 12# two bytes of magic followed by "\r\n" in little endian order 130 belong 0x02099900 python 1.0 byte-compiled 14!:mime application/x-bytecode.python 150 belong 0x03099900 python 1.1/1.2 byte-compiled 16!:mime application/x-bytecode.python 170 belong 0x892e0d0a python 1.3 byte-compiled 18!:mime application/x-bytecode.python 190 belong 0x04170d0a python 1.4 byte-compiled 20!:mime application/x-bytecode.python 210 belong 0x994e0d0a python 1.5 byte-compiled 22!:mime application/x-bytecode.python 230 belong 0xfcc40d0a 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byte-compiled 138!:mime application/x-bytecode.python 1390 belong 0x9e0c0d0a python 3.3 byte-compiled 140!:mime application/x-bytecode.python 1410 belong 0xb20c0d0a python 3.4 byte-compiled 142!:mime application/x-bytecode.python 1430 belong 0xbc0c0d0a python 3.4 byte-compiled 144!:mime application/x-bytecode.python 1450 belong 0xc60c0d0a python 3.4 byte-compiled 146!:mime application/x-bytecode.python 1470 belong 0xd00c0d0a python 3.4 byte-compiled 148!:mime application/x-bytecode.python 1490 belong 0xda0c0d0a python 3.4 byte-compiled 150!:mime application/x-bytecode.python 1510 belong 0xe40c0d0a python 3.4 byte-compiled 152!:mime application/x-bytecode.python 1530 belong 0xee0c0d0a python 3.4 byte-compiled 154!:mime application/x-bytecode.python 1550 belong 0xf80c0d0a python 3.5.1- byte-compiled 156!:mime application/x-bytecode.python 1570 belong 0x020d0d0a python 3.5.1- byte-compiled 158!:mime application/x-bytecode.python 1590 belong 0x0c0d0d0a python 3.5.1- byte-compiled 160!:mime application/x-bytecode.python 1610 belong 0x160d0d0a python 3.5.1- byte-compiled 162!:mime application/x-bytecode.python 1630 belong 0x170d0d0a python 3.5.2+ byte-compiled 164!:mime application/x-bytecode.python 1650 belong 0x200d0d0a python 3.6 byte-compiled 166!:mime application/x-bytecode.python 1670 belong 0x210d0d0a python 3.6 byte-compiled 168!:mime application/x-bytecode.python 1690 belong 0x2a0d0d0a python 3.6 byte-compiled 170!:mime application/x-bytecode.python 1710 belong 0x2b0d0d0a python 3.6 byte-compiled 172!:mime application/x-bytecode.python 1730 belong 0x2c0d0d0a python 3.6 byte-compiled 174!:mime application/x-bytecode.python 1750 belong 0x2d0d0d0a python 3.6 byte-compiled 176!:mime application/x-bytecode.python 1770 belong 0x2f0d0d0a python 3.6 byte-compiled 178!:mime application/x-bytecode.python 1790 belong 0x300d0d0a python 3.6 byte-compiled 180!:mime application/x-bytecode.python 1810 belong 0x310d0d0a python 3.6 byte-compiled 182!:mime application/x-bytecode.python 1830 belong 0x320d0d0a python 3.6 byte-compiled 184!:mime application/x-bytecode.python 1850 belong 0x330d0d0a python 3.6 byte-compiled 186!:mime application/x-bytecode.python 1870 belong 0x3e0d0d0a python 3.7 byte-compiled 188!:mime application/x-bytecode.python 1890 belong 0x3f0d0d0a python 3.7 byte-compiled 190!:mime application/x-bytecode.python 191 192# magic 3392+ implements PEP 552: Deterministic pycs 1930 name pyc-pep552 194# the flag field determines how .pyc validity is checked 195>4 ulelong&1 0 timestamp-based, 196>>8 uledate x .py timestamp: %s UTC, 197>>12 ulelong x .py size: %d bytes 198>4 ulelong&1 !0 hash-based, check-source flag 199>>4 ulelong&2 0 unset, 200>>4 ulelong&2 !0 set, 201>>8 ulequad x hash: 0x%llx 202 203# uleshort magic followed by \x0d\0xa 2042 string \x0d\x0a 205# extra check: only two bits of flag field are currently used 206>4 ulelong <0x4 207# \x0d as part of magic should suffice till Python 3.14 (magic 3600) 208>>1 ubyte 0x0d Byte-compiled Python module for 209!:mime application/x-bytecode.python 210# now look at the magic number to determine the version 211>>>0 uleshort <3400 CPython 3.7, 212>>>0 default x 213>>>>0 uleshort <3420 CPython 3.8, 214>>>>0 default x 215>>>>>0 uleshort <3430 CPython 3.9, 216>>>>>0 default x 217>>>>>>0 uleshort <3450 CPython 3.10, 218>>>>>>0 default x 219>>>>>>>0 uleshort <3500 CPython 3.11, 220>>>>>>>0 default x CPython 3.12 or newer, 221>>>0 use pyc-pep552 222>>0 uleshort 240 Byte-compiled Python module for PyPy3.7, 223!:mime application/x-bytecode.python 224>>>0 use pyc-pep552 225>>0 uleshort 256 Byte-compiled Python module for PyPy3.8, 226!:mime application/x-bytecode.python 227>>>0 use pyc-pep552 228>>0 uleshort 336 Byte-compiled Python module for PyPy3.9, 229!:mime application/x-bytecode.python 230>>>0 use pyc-pep552 231 2320 search/1/w #!\040/usr/bin/python Python script text executable 233!:strength + 15 234!:mime text/x-script.python 2350 search/1/w #!\040/usr/local/bin/python Python script text executable 236!:strength + 15 237!:mime text/x-script.python 2380 search/10/w #!\040/usr/bin/env\040python Python script text executable 239!:strength + 15 240!:mime text/x-script.python 241 242 243# from module.submodule import func1, func2 2440 search/8192 import 245>0 regex \^from[\040\t]+([A-Za-z0-9_]|\\.)+[\040\t]+import.*$ Python script text executable 246!:strength + 15 247!:mime text/x-script.python 248 249# def __init__ (self, ...): 2500 search/4096 def\ __init__ 251>&0 search/64 self Python script text executable 252!:strength + 15 253!:mime text/x-script.python 254 255# if __name__ == "__main__": 2560 search/4096 if\ __name__ 257>&0 search/64 '__main__' Python script text executable 258>&0 search/64 "__main__" Python script text executable 259!:strength + 15 260!:mime text/x-script.python 261 262# import module [as abrev] 2630 search/8192 import 264>0 regex \^import\ [_[:alpha:]]+\ as\ [[:alpha:]][[:space:]]*$ Python script text executable 265!:mime text/x-script.python 266 267# comments 268#0 search/4096 ''' 269#>&0 regex .*'''$ Python script text executable 270#!:mime text/x-script.python 271 272#0 search/4096 """ 273#>&0 regex .*"""$ Python script text executable 274#!:mime text/x-script.python 275 276# try: 277# except: or finally: 278# block 2790 search/4096 try: 280>&0 regex \^[[:space:]]*except.*:$ Python script text executable 281!:strength + 15 282!:mime text/x-script.python 283>&0 search/4096 finally: Python script text executable 284!:mime text/x-script.python 285 286# class name[(base classes,)]: [pass] 2870 search/8192 class 288>0 regex \^class\ [_[:alpha:]]+(\\(.*\\))?(\ )*:([\ \t]+pass)?$ Python script text executable 289!:strength + 15 290!:mime text/x-script.python 291 292# def name(*args, **kwargs): 2930 search/8192 def\ 294>0 regex \^[[:space:]]{0,50}def\ {1,50}[_a-zA-Z]{1,100} 295>>&0 regex \\(([[:alpha:]*_,\ ]){0,255}\\):$ Python script text executable 296!:strength + 15 297!:mime text/x-script.python 298 299# https://numpy.org/devdocs/reference/generated/numpy.lib.format.html 3000 string \223NUMPY NumPy data file 301!:mime application/x-numpy-data 302>6 byte x \b, version %d 303>7 byte x \b.%d 304#>8 leshort x \b, header length=%d 305>10 string x \b, description %s 306