Python中读取带有特殊字符的参数时出现问题
我有一个脚本（a.py）读取两个这样的参数：-
#!/usr/bin/env python
import sys
username = sys.argv[1]
password = sys.argv[2]
问题是，当我使用一些特殊字符调用脚本时：-
a.py "Lionel" "my*password"
它给了我这个错误：-
/swdev/tools/python/current/linux64/bin/python: No match.
有解决方法吗？
I have a scripts (a.py) reads in 2 parameters like this:-
#!/usr/bin/env python
import sys
username = sys.argv[1]
password = sys.argv[2]
Problem is, when I call the script with some special characters:-
a.py "Lionel" "my*password"
It gives me this error:-
/swdev/tools/python/current/linux64/bin/python: No match.
Any workaround for this?
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问题在于您实际使用的命令与您向我们展示的命令不同。证据：在 Perl 中，前两个命令行参数是
$ARGV[0]和$ARGV[1]（命令名称是$0>）。您向我们展示的 Perl 脚本不会产生您向我们展示的输出。“不匹配”是 shell 错误消息。
复制并粘贴（不要重新输入）Python 脚本的准确内容、用于调用它的准确命令行以及您得到的确切输出。
还有一些需要注意的事情：
您将脚本作为
a.py调用，这意味着您将其复制到$PATH中的某个目录，或者.在您的$PATH中。如果是后者，那是个坏主意；考虑一下如果您cdinfo 包含名为ls（可能是恶意）命令的目录，会发生什么情况。将.放在$PATH的末尾比将其放在开头更安全，但我仍然建议完全忽略它并使用./command 调用当前目录中的命令。无论如何，出于本练习的目的，请使用./a.py而不是a.py，这样我们就可以确保您不会选择另一个来自$PATH中其他位置的a.py。这是一个不太可能的情况，但请检查当前目录中是否有名称中包含
*字符的文件。如果没有匹配的文件，some_command asd*123（不带引号）将会失败，但如果碰巧有一个文件名实际上是"asd*123"，则不会失败。另一件要尝试的事情是：按如下方式更改您的 Python 脚本：
这将告诉您 shell 是否正在调用您的脚本。
The problem is in the commands you're actually using, which are not the same as the commands you've shown us. Evidence: in Perl, the first two command-line arguments are
$ARGV[0]and$ARGV[1](the command name is$0). The Perl script you showed us wouldn't produce the output you showed us."No match" is a shell error message.
Copy-and-paste (don't re-type) the exact contents of your Python script, the exact command line you used to invoke it, and the exact output you got.
Some more things to watch out for:
You're invoking the script as
a.py, which implies either that you're copying it to some directory in your$PATH, or that.is in your$PATH. If the latter, that's a bad idea; consider what happens if youcdinfo a directory that contains a (possibly malicious) command calledls. Putting.at the end of your$PATHis safer than putting it at the beginning, but I still recommend leaving it out altogether and using./commandto invoke commands in the current directory. In any case, for purposes of this exercise, please use./a.pyrather thana.py, just so we can be sure you're not picking up anothera.pyfrom elsewhere in your$PATH.This is a long shot, but check whether you have any files in your current directory with a
*character in their names.some_command asd*123(without quotation marks) will fail if there are no matching files, but not if there happens to be a file whose name is literally"asd*123".Another thing to try: change your Python script as follows:
This will tell you whether the shell is invoking your script at all.
该错误来自您的 shell，而不是来自 Python。您是否在
.bashrc或其他地方设置了shopt -s failureglob？That error comes from your shell, not from Python. Do you have a
shopt -s failglobset in your.bashrcor somewhere?我认为问题是 python 环境未设置：
Python 在你的机器上运行吗？
I think the problem is that the python env is not set:
Does python run at all on your machine ?