'''帮助文档mkdir(path, mode=511, *, dir_fd=None) Create a directory. If dir_fd is not None, it should be a file descriptor open to a directory, and path should be relative; path will then be relative to that direc
>>> import os >>> help(os.mkdir) Help on built-in function mkdir in module nt: mkdir(path, mode=511, *, dir_fd=None) Create a directory. If dir_fd is not None, it should be a file descriptor open to a directory, and path should be relative; path will then be relative to th...
1. 在python命令行交互环境下,可以用dir()函数查看当前的变量,比如: >>> dir() ['__builtins__', '__doc__', '__loader__', '__name__', '__package__', '__spec__', 'name'] >>> help(dir) Help on built-in function dir in module builtins: dir(...) dir([object]) -> li...
从python3.3起,os.lstat(path, *, dir_fd=None)函数等同于os.stat(path, dir_fd=dir_fd, follow_symlinks=False函数。 os.fstat(fd)该函数返回一个stat_result对象,表征一个文件描述符(filedescriptor)的状态。从 Python 3.3 开始,这等效于os.stat(fd) samestat(stat1, stat2)检测两个stat_result对象是否...
os.rmdir(path, *, dir_fd=None):删除单级空目录,若目录不为空则抛出异常 os.listdir(path=None):列出某路径下的所有文件,包括文件和目录 os.remove():删除一个文件 os.rename('oldname','newname'):重命名文件/目录 os.stat('path/to/filename'):获取文件/目录信息 ...
(path,mode=511,*,dir_fd=None)Create a directory.If dir_fdisnotNone,it should be afiledescriptoropento a directory,andpath should be relative;path will then be relative to that directory.dir_fd maynotbe implemented on your platform.If itisunavailable,using it willraisea NotImplementedError.The...
os.tcsetpgrp(fd, pg) 设置与终端fd(一个由os.open()返回的打开的文件描述符)关联的进程组为pg。 56 os.tempnam([dir[, prefix]]) Python3 中已删除。返回唯一的路径名用于创建临时文件。 57 os.tmpfile() Python3 中已删除。返回一个打开的模式为(w+b)的文件对象 .这文件对象没有文件夹入口,没有文...
'supports_bytes_environ','supports_dir_fd','supports_effective_ids','supports_fd','supports_follow_symlinks','symlink','sys','system','terminal_size','times','times_result','truncate','umask','uname_result','unlink','unsetenv','urandom','utime','waitpid','waitstatus_to_exitcode','...
47. open(file, mode='r', buffering=-1, encoding=None, errors=None, newline=None, closefd=True, opener=None):打开文件,返回文件对象。48. ord(c):返回字符c的Unicode值。49. pow(x, y[, z]):返回x的y次方,如果提供了参数z,则计算结果的模为z。50. print(*objects, sep=' ', end='...
实际上我们的子进程执行的程序是python -c 'from multiprocessing.spawn import spawn_main; spawn_main(tracker_fd=4, pipe_handle=6)' --multiprocessing-fork,它可以通过tracker_fd=4这个管道与resource_tracker进程进行通信,通过pipe_handle=6这个管道与父进程进行通信 ...