python模块:sys
1 # encoding: utf-8 2 # module sys 3 # from (built-in) 4 # by generator 1.145 5 """ 6 This module provides access to some objects used or maintained by the 7 interpreter and to functions that interact strongly with the interpreter. 8 9 Dynamic objects: 10 11 argv -- command line arguments; argv[0] is the script pathname if known 12 path -- module search path; path[0] is the script directory, else '' 13 modules -- dictionary of loaded modules 14 15 displayhook -- called to show results in an interactive session 16 excepthook -- called to handle any uncaught exception other than SystemExit 17 To customize printing in an interactive session or to install a custom 18 top-level exception handler, assign other functions to replace these. 19 20 stdin -- standard input file object; used by input() 21 stdout -- standard output file object; used by print() 22 stderr -- standard error object; used for error messages 23 By assigning other file objects (or objects that behave like files) 24 to these, it is possible to redirect all of the interpreter's I/O. 25 26 last_type -- type of last uncaught exception 27 last_value -- value of last uncaught exception 28 last_traceback -- traceback of last uncaught exception 29 These three are only available in an interactive session after a 30 traceback has been printed. 31 32 Static objects: 33 34 builtin_module_names -- tuple of module names built into this interpreter 35 copyright -- copyright notice pertaining to this interpreter 36 exec_prefix -- prefix used to find the machine-specific Python library 37 executable -- absolute path of the executable binary of the Python interpreter 38 float_info -- a struct sequence with information about the float implementation. 39 float_repr_style -- string indicating the style of repr() output for floats 40 hash_info -- a struct sequence with information about the hash algorithm. 41 hexversion -- version information encoded as a single integer 42 implementation -- Python implementation information. 43 int_info -- a struct sequence with information about the int implementation. 44 maxsize -- the largest supported length of containers. 45 maxunicode -- the value of the largest Unicode code point 46 platform -- platform identifier 47 prefix -- prefix used to find the Python library 48 thread_info -- a struct sequence with information about the thread implementation. 49 version -- the version of this interpreter as a string 50 version_info -- version information as a named tuple 51 dllhandle -- [Windows only] integer handle of the Python DLL 52 winver -- [Windows only] version number of the Python DLL 53 _enablelegacywindowsfsencoding -- [Windows only] 54 __stdin__ -- the original stdin; don't touch! 55 __stdout__ -- the original stdout; don't touch! 56 __stderr__ -- the original stderr; don't touch! 57 __displayhook__ -- the original displayhook; don't touch! 58 __excepthook__ -- the original excepthook; don't touch! 59 60 Functions: 61 62 displayhook() -- print an object to the screen, and save it in builtins._ 63 excepthook() -- print an exception and its traceback to sys.stderr 64 exc_info() -- return thread-safe information about the current exception 65 exit() -- exit the interpreter by raising SystemExit 66 getdlopenflags() -- returns flags to be used for dlopen() calls 67 getprofile() -- get the global profiling function 68 getrefcount() -- return the reference count for an object (plus one :-) 69 getrecursionlimit() -- return the max recursion depth for the interpreter 70 getsizeof() -- return the size of an object in bytes 71 gettrace() -- get the global debug tracing function 72 setcheckinterval() -- control how often the interpreter checks for events 73 setdlopenflags() -- set the flags to be used for dlopen() calls 74 setprofile() -- set the global profiling function 75 setrecursionlimit() -- set the max recursion depth for the interpreter 76 settrace() -- set the global debug tracing function 77 """ 78 # no imports 79 80 # Variables with simple values 81 82 api_version = 1013 83 84 base_exec_prefix = 'C:\\Users\\limugen\\AppData\\Local\\Programs\\Python\\Python36' 85 86 base_prefix = 'C:\\Users\\limugen\\AppData\\Local\\Programs\\Python\\Python36' 87 88 byteorder = 'little' 89 90 copyright = 'Copyright (c) 2001-2017 Python Software Foundation.\nAll Rights Reserved.\n\nCopyright (c) 2000 BeOpen.com.\nAll Rights Reserved.\n\nCopyright (c) 1995-2001 Corporation for National Research Initiatives.\nAll Rights Reserved.\n\nCopyright (c) 1991-1995 Stichting Mathematisch Centrum, Amsterdam.\nAll Rights Reserved.' 91 92 dllhandle = 1675624448 93 94 dont_write_bytecode = True 95 96 executable = 'C:\\Users\\limugen\\AppData\\Local\\Programs\\Python\\Python36\\python.exe' 97 98 exec_prefix = 'C:\\Users\\limugen\\AppData\\Local\\Programs\\Python\\Python36' 99 100 float_repr_style = 'short' 101 102 hexversion = 50725872 103 104 maxsize = 9223372036854775807 105 maxunicode = 1114111 106 107 platform = 'win32' 108 109 prefix = 'C:\\Users\\limugen\\AppData\\Local\\Programs\\Python\\Python36' 110 111 version = '3.6.3 (v3.6.3:2c5fed8, Oct 3 2017, 18:11:49) [MSC v.1900 64 bit (AMD64)]' 112 113 winver = '3.6' 114 115 _home = None 116 117 # functions 118 119 def callstats(): # real signature unknown; restored from __doc__ 120 """ 121 callstats() -> tuple of integers 122 123 Return a tuple of function call statistics, if CALL_PROFILE was defined 124 when Python was built. Otherwise, return None. 125 126 When enabled, this function returns detailed, implementation-specific 127 details about the number of function calls executed. The return value is 128 a 11-tuple where the entries in the tuple are counts of: 129 0. all function calls 130 1. calls to PyFunction_Type objects 131 2. PyFunction calls that do not create an argument tuple 132 3. PyFunction calls that do not create an argument tuple 133 and bypass PyEval_EvalCodeEx() 134 4. PyMethod calls 135 5. PyMethod calls on bound methods 136 6. PyType calls 137 7. PyCFunction calls 138 8. generator calls 139 9. All other calls 140 10. Number of stack pops performed by call_function() 141 """ 142 return () 143 144 def call_tracing(func, args): # real signature unknown; restored from __doc__ 145 """ 146 call_tracing(func, args) -> object 147 148 Call func(*args), while tracing is enabled. The tracing state is 149 saved, and restored afterwards. This is intended to be called from 150 a debugger from a checkpoint, to recursively debug some other code. 151 """ 152 return object() 153 154 def displayhook(p_object): # real signature unknown; restored from __doc__ 155 """ 156 displayhook(object) -> None 157 158 Print an object to sys.stdout and also save it in builtins._ 159 """ 160 pass 161 162 def excepthook(exctype, value, traceback): # real signature unknown; restored from __doc__ 163 """ 164 excepthook(exctype, value, traceback) -> None 165 166 Handle an exception by displaying it with a traceback on sys.stderr. 167 """ 168 pass 169 170 def exc_info(): # real signature unknown; restored from __doc__ 171 """ 172 exc_info() -> (type, value, traceback) 173 174 Return information about the most recent exception caught by an except 175 clause in the current stack frame or in an older stack frame. 176 """ 177 pass 178 179 def exit(status=None): # real signature unknown; restored from __doc__ 180 """ 181 exit([status]) 182 183 Exit the interpreter by raising SystemExit(status). 184 If the status is omitted or None, it defaults to zero (i.e., success). 185 If the status is an integer, it will be used as the system exit status. 186 If it is another kind of object, it will be printed and the system 187 exit status will be one (i.e., failure). 188 """ 189 pass 190 191 def getallocatedblocks(): # real signature unknown; restored from __doc__ 192 """ 193 getallocatedblocks() -> integer 194 195 Return the number of memory blocks currently allocated, regardless of their 196 size. 197 """ 198 return 0 199 200 def getcheckinterval(): # real signature unknown; restored from __doc__ 201 """ getcheckinterval() -> current check interval; see setcheckinterval(). """ 202 pass 203 204 def getdefaultencoding(): # real signature unknown; restored from __doc__ 205 """ 206 getdefaultencoding() -> string 207 208 Return the current default string encoding used by the Unicode 209 implementation. 210 """ 211 return "" 212 213 def getfilesystemencodeerrors(): # real signature unknown; restored from __doc__ 214 """ 215 getfilesystemencodeerrors() -> string 216 217 Return the error mode used to convert Unicode filenames in 218 operating system filenames. 219 """ 220 return "" 221 222 def getfilesystemencoding(): # real signature unknown; restored from __doc__ 223 """ 224 getfilesystemencoding() -> string 225 226 Return the encoding used to convert Unicode filenames in 227 operating system filenames. 228 """ 229 return "" 230 231 def getprofile(): # real signature unknown; restored from __doc__ 232 """ 233 getprofile() 234 235 Return the profiling function set with sys.setprofile. 236 See the profiler chapter in the library manual. 237 """ 238 pass 239 240 def getrecursionlimit(): # real signature unknown; restored from __doc__ 241 """ 242 getrecursionlimit() 243 244 Return the current value of the recursion limit, the maximum depth 245 of the Python interpreter stack. This limit prevents infinite 246 recursion from causing an overflow of the C stack and crashing Python. 247 """ 248 pass 249 250 def getrefcount(p_object): # real signature unknown; restored from __doc__ 251 """ 252 getrefcount(object) -> integer 253 254 Return the reference count of object. The count returned is generally 255 one higher than you might expect, because it includes the (temporary) 256 reference as an argument to getrefcount(). 257 """ 258 return 0 259 260 def getsizeof(p_object, default): # real signature unknown; restored from __doc__ 261 """ 262 getsizeof(object, default) -> int 263 264 Return the size of object in bytes. 265 """ 266 return 0 267 268 def getswitchinterval(): # real signature unknown; restored from __doc__ 269 """ getswitchinterval() -> current thread switch interval; see setswitchinterval(). """ 270 pass 271 272 def gettrace(): # real signature unknown; restored from __doc__ 273 """ 274 gettrace() 275 276 Return the global debug tracing function set with sys.settrace. 277 See the debugger chapter in the library manual. 278 """ 279 pass 280 281 def getwindowsversion(): # real signature unknown; restored from __doc__ 282 """ 283 getwindowsversion() 284 285 Return information about the running version of Windows as a named tuple. 286 The members are named: major, minor, build, platform, service_pack, 287 service_pack_major, service_pack_minor, suite_mask, and product_type. For 288 backward compatibility, only the first 5 items are available by indexing. 289 All elements are numbers, except service_pack and platform_type which are 290 strings, and platform_version which is a 3-tuple. Platform is always 2. 291 Product_type may be 1 for a workstation, 2 for a domain controller, 3 for a 292 server. Platform_version is a 3-tuple containing a version number that is 293 intended for identifying the OS rather than feature detection. 294 """ 295 pass 296 297 def get_asyncgen_hooks(): # real signature unknown; restored from __doc__ 298 """ 299 get_asyncgen_hooks() 300 301 Return a namedtuple of installed asynchronous generators hooks (firstiter, finalizer). 302 """ 303 pass 304 305 def get_coroutine_wrapper(): # real signature unknown; restored from __doc__ 306 """ 307 get_coroutine_wrapper() 308 309 Return the wrapper for coroutine objects set by sys.set_coroutine_wrapper. 310 """ 311 pass 312 313 def intern(string): # real signature unknown; restored from __doc__ 314 """ 315 intern(string) -> string 316 317 ``Intern'' the given string. This enters the string in the (global) 318 table of interned strings whose purpose is to speed up dictionary lookups. 319 Return the string itself or the previously interned string object with the 320 same value. 321 """ 322 return "" 323 324 def is_finalizing(): # real signature unknown; restored from __doc__ 325 """ 326 is_finalizing() 327 Return True if Python is exiting. 328 """ 329 pass 330 331 def setcheckinterval(n): # real signature unknown; restored from __doc__ 332 """ 333 setcheckinterval(n) 334 335 Tell the Python interpreter to check for asynchronous events every 336 n instructions. This also affects how often thread switches occur. 337 """ 338 pass 339 340 def setprofile(function): # real signature unknown; restored from __doc__ 341 """ 342 setprofile(function) 343 344 Set the profiling function. It will be called on each function call 345 and return. See the profiler chapter in the library manual. 346 """ 347 pass 348 349 def setrecursionlimit(n): # real signature unknown; restored from __doc__ 350 """ 351 setrecursionlimit(n) 352 353 Set the maximum depth of the Python interpreter stack to n. This 354 limit prevents infinite recursion from causing an overflow of the C 355 stack and crashing Python. The highest possible limit is platform- 356 dependent. 357 """ 358 pass 359 360 def setswitchinterval(n): # real signature unknown; restored from __doc__ 361 """ 362 setswitchinterval(n) 363 364 Set the ideal thread switching delay inside the Python interpreter 365 The actual frequency of switching threads can be lower if the 366 interpreter executes long sequences of uninterruptible code 367 (this is implementation-specific and workload-dependent). 368 369 The parameter must represent the desired switching delay in seconds 370 A typical value is 0.005 (5 milliseconds). 371 """ 372 pass 373 374 def settrace(function): # real signature unknown; restored from __doc__ 375 """ 376 settrace(function) 377 378 Set the global debug tracing function. It will be called on each 379 function call. See the debugger chapter in the library manual. 380 """ 381 pass 382 383 def set_asyncgen_hooks(*args, **kwargs): # real signature unknown; NOTE: unreliably restored from __doc__ 384 """ 385 set_asyncgen_hooks(*, firstiter=None, finalizer=None) 386 387 Set a finalizer for async generators objects. 388 """ 389 pass 390 391 def set_coroutine_wrapper(wrapper): # real signature unknown; restored from __doc__ 392 """ 393 set_coroutine_wrapper(wrapper) 394 395 Set a wrapper for coroutine objects. 396 """ 397 pass 398 399 def _clear_type_cache(): # real signature unknown; restored from __doc__ 400 """ 401 _clear_type_cache() -> None 402 Clear the internal type lookup cache. 403 """ 404 pass 405 406 def _current_frames(): # real signature unknown; restored from __doc__ 407 """ 408 _current_frames() -> dictionary 409 410 Return a dictionary mapping each current thread T's thread id to T's 411 current stack frame. 412 413 This function should be used for specialized purposes only. 414 """ 415 return {} 416 417 def _debugmallocstats(): # real signature unknown; restored from __doc__ 418 """ 419 _debugmallocstats() 420 421 Print summary info to stderr about the state of 422 pymalloc's structures. 423 424 In Py_DEBUG mode, also perform some expensive internal consistency 425 checks. 426 """ 427 pass 428 429 def _enablelegacywindowsfsencoding(): # real signature unknown; restored from __doc__ 430 """ 431 _enablelegacywindowsfsencoding() 432 433 Changes the default filesystem encoding to mbcs:replace for consistency 434 with earlier versions of Python. See PEP 529 for more information. 435 436 This is equivalent to defining the PYTHONLEGACYWINDOWSFSENCODING 437 environment variable before launching Python. 438 """ 439 pass 440 441 def _getframe(depth=None): # real signature unknown; restored from __doc__ 442 """ 443 _getframe([depth]) -> frameobject 444 445 Return a frame object from the call stack. If optional integer depth is 446 given, return the frame object that many calls below the top of the stack. 447 If that is deeper than the call stack, ValueError is raised. The default 448 for depth is zero, returning the frame at the top of the call stack. 449 450 This function should be used for internal and specialized 451 purposes only. 452 """ 453 pass 454 455 def __displayhook__(*args, **kwargs): # real signature unknown 456 """ 457 displayhook(object) -> None 458 459 Print an object to sys.stdout and also save it in builtins._ 460 """ 461 pass 462 463 def __excepthook__(*args, **kwargs): # real signature unknown 464 """ 465 excepthook(exctype, value, traceback) -> None 466 467 Handle an exception by displaying it with a traceback on sys.stderr. 468 """ 469 pass 470 471 def __interactivehook__(): # reliably restored by inspect 472 # no doc 473 pass 474 475 # classes 476 477 class __loader__(object): 478 """ 479 Meta path import for built-in modules. 480 481 All methods are either class or static methods to avoid the need to 482 instantiate the class. 483 """ 484 @classmethod 485 def create_module(cls, *args, **kwargs): # real signature unknown 486 """ Create a built-in module """ 487 pass 488 489 @classmethod 490 def exec_module(cls, *args, **kwargs): # real signature unknown 491 """ Exec a built-in module """ 492 pass 493 494 @classmethod 495 def find_module(cls, *args, **kwargs): # real signature unknown 496 """ 497 Find the built-in module. 498 499 If 'path' is ever specified then the search is considered a failure. 500 501 This method is deprecated. Use find_spec() instead. 502 """ 503 pass 504 505 @classmethod 506 def find_spec(cls, *args, **kwargs): # real signature unknown 507 pass 508 509 @classmethod 510 def get_code(cls, *args, **kwargs): # real signature unknown 511 """ Return None as built-in modules do not have code objects. """ 512 pass 513 514 @classmethod 515 def get_source(cls, *args, **kwargs): # real signature unknown 516 """ Return None as built-in modules do not have source code. """ 517 pass 518 519 @classmethod 520 def is_package(cls, *args, **kwargs): # real signature unknown 521 """ Return False as built-in modules are never packages. """ 522 pass 523 524 @classmethod 525 def load_module(cls, *args, **kwargs): # real signature unknown 526 """ 527 Load the specified module into sys.modules and return it. 528 529 This method is deprecated. Use loader.exec_module instead. 530 """ 531 pass 532 533 def module_repr(module): # reliably restored by inspect 534 """ 535 Return repr for the module. 536 537 The method is deprecated. The import machinery does the job itself. 538 """ 539 pass 540 541 def __init__(self, *args, **kwargs): # real signature unknown 542 pass 543 544 __weakref__ = property(lambda self: object(), lambda self, v: None, lambda self: None) # default 545 """list of weak references to the object (if defined)""" 546 547 548 __dict__ = None # (!) real value is '' 549 550 551 # variables with complex values 552 553 argv = [] # real value of type <class 'list'> skipped 554 555 builtin_module_names = () # real value of type <class 'tuple'> skipped 556 557 flags = ( 558 0, 559 0, 560 0, 561 0, 562 1, 563 0, 564 0, 565 0, 566 0, 567 0, 568 0, 569 1, 570 0, 571 ) 572 573 float_info = ( 574 1.7976931348623157e+308, 575 1024, 576 308, 577 2.2250738585072014e-308, 578 -1021, 579 -307, 580 15, 581 53, 582 2.220446049250313e-16, 583 2, 584 1, 585 ) 586 587 hash_info = ( 588 64, 589 2305843009213693951, 590 314159, 591 0, 592 1000003, 593 'siphash24', 594 64, 595 128, 596 0, 597 ) 598 599 implementation = None # (!) real value is '' 600 601 int_info = ( 602 30, 603 4, 604 ) 605 606 meta_path = [ 607 __loader__, 608 None, # (!) real value is '' 609 None, # (!) real value is '' 610 ] 611 612 modules = {} # real value of type <class 'dict'> skipped 613 614 path = [ 615 'C:\\Program Files\\JetBrains\\PyCharm 2017.2.4\\helpers', 616 'C:\\Users\\limugen\\AppData\\Local\\Programs\\Python\\Python36\\python36.zip', 617 'C:\\Users\\limugen\\AppData\\Local\\Programs\\Python\\Python36\\DLLs', 618 'C:\\Users\\limugen\\AppData\\Local\\Programs\\Python\\Python36\\lib', 619 'C:\\Users\\limugen\\AppData\\Local\\Programs\\Python\\Python36', 620 'C:\\Users\\limugen\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages', 621 ] 622 623 path_hooks = [ 624 None, # (!) real value is '' 625 None, # (!) real value is '' 626 ] 627 628 path_importer_cache = {} # real value of type <class 'dict'> skipped 629 630 stderr = None # (!) real value is '' 631 632 stdin = None # (!) forward: __stdin__, real value is '' 633 634 stdout = None # (!) forward: __stdout__, real value is '' 635 636 thread_info = ( 637 'nt', 638 None, 639 None, 640 ) 641 642 version_info = ( 643 3, 644 6, 645 3, 646 'final', 647 0, 648 ) 649 650 warnoptions = [] 651 652 _git = ( 653 'CPython', 654 'v3.6.3', 655 '2c5fed8', 656 ) 657 658 _xoptions = {} 659 660 __spec__ = None # (!) real value is '' 661 662 __stderr__ = stderr 663 664 __stdin__ = None # (!) real value is '' 665 666 __stdout__ = None # (!) real value is '' 667 668 # intermittent names 669 exc_value = Exception() 670 exc_traceback=None
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