如何重建此缓存目录python3 /cmd cmd
如何重建此缓存目录python3 /cmd cmd
提问于 2021-06-27 00:20:56
我想知道如何在python3中做这个简短的测试，python3支持cmd，但dircache不支持...目前只能在python2上工作，但希望将其更改为在python3上工作，谢谢！
#!/usr/bin/env python
import cmd
import dircache
class MyCmd(cmd.Cmd):
def __init__(self):
cmd.Cmd.__init__(self)
self.prompt = '(MyCmd)'
def do_test(self, line):
print('cmd test ' + line)
def complete_test(self, text, line, begidx, endidx):
""" auto complete of file name.
"""
line = line.split()
if len(line) < 2:
filename = ''
path = './'
else:
path = line[1]
if '/' in path:
i = path.rfind('/')
filename = path[i+1:]
path = path[:i]
else:
filename = path
path = './'
ls = dircache.listdir(path)
ls = ls[:] # for overwrite in annotate.
dircache.annotate(path, ls)
if filename == '':
return ls
else:
return [f for f in ls if f.startswith(filename)]
if __name__ == '__main__':
mycmd = MyCmd()
mycmd.cmdloop()我尝试过使用它而不是dircache，但是没有成功
@lru_cache(32)
def cached_listdir(d):
return os.listdir(d)回答 1
Stack Overflow用户
回答已采纳
发布于 2021-06-29 00:49:17
在这里您可以查看load函数
import os
import glob
import cmd
def _append_slash_if_dir(p):
if p and os.path.isdir(p) and p[-1] != os.sep:
return p + os.sep
else:
return p
class MyShell(cmd.Cmd):
prompt = "> "
def do_quit(self, line):
return True
def do_load(self, line):
print("load " + line)
def complete_load(self, text, line, begidx, endidx):
before_arg = line.rfind(" ", 0, begidx)
if before_arg == -1:
return # arg not found
fixed = line[before_arg+1:begidx] # fixed portion of the arg
arg = line[before_arg+1:endidx]
pattern = arg + '*'
completions = []
for path in glob.glob(pattern):
path = _append_slash_if_dir(path)
completions.append(path.replace(fixed, "", 1))
return completions
MyShell().cmdloop()页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/68144253
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