我正在学习《Python编程快速上手》的第8章,尝试扩展Multiclipboard项目。以下是我的代码:
#! /usr/bin/env python3
# mcb.pyw saves and loads pieces of text to the clipboard
# Usage: save <keyword> - Saves clipboard to keyword.
# <keyword> - Loads keyword to the clipboard.
# list - Loads all keywords to clipboard.
# delete <keyword> - Deletes keyword from shelve.
import sys, shelve, pyperclip, os
# open shelve file
dbFile = os.path.join('Users', 'dustin', 'Documents', 'repos', 'python', 'mcbdb')
shelfFile = shelve.open(dbFile)
# Save clipboard content
if len(sys.argv) == 3 and sys.argv[1].lower() == 'save':
shelfFile[sys.argv[2]]= pyperclip.paste()
# Delete choosen content
elif len(sys.argv) == 3 and sys.argv[1].lower() == 'delete':
if sys.argv[2] in list(shelfFile.keys()):
del shelfFile[sys.argv[2]]
print('"' + sys.argv[2] + '" has been deleted.')
else:
print('"' + sys.argv[2] + '" not found.')
elif len(sys.argv) == 2:
# List keywords
if sys.argv[1].lower() == 'list':
print('\nAvailable keywords:\n')
keywords = list(shelfFile.keys())
for key in sorted(keywords):
print(key)
# Load content
elif sys.argv[1] in shelfFile:
pyperclip.copy(shelfFile[sys.argv[1]])
else:
# Print usage error
print('Usage:\n1. save <keyword>\n2. <keyword>\n' +
'3. list\n4. delete <keyword>')
sys.exit()
# close shelve file
shelfFile.close()
我已经将这个程序添加到我的路径中,并希望在任何工作目录中使用它。问题是shelve.open()会在当前工作目录下创建一个新文件。如何设置一个持久的目录?
dbFile
是一个好的开始。目前看起来有些不对,因为它是相对于你所在的位置的一个相对路径,从Users
开始,但实际上你可能想要的是/Users
。 - Nick T