I have a variable toPath (contains path like C:/Program Files(x86)/bla).
This variable I pass as agrument: '[-operation update -contents ' + toPath + ']'
But because I have a space in this variable I get IllegalArgumentException.
How can I fix this?
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What exactly are you trying to do? And what does the code look like? We'll need more information than that to help you. Please edit your question. – mhlz Mar 17 '15 at 08:11
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`toPath` is a string. Right? If it is, the cause of error you are mentioning is incorrect. Can you tell me the output for `type(toPath)`? – Moinuddin Quadri Mar 17 '15 at 08:13
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@MoinuddinQuadri this is string – Diooi Mar 17 '15 at 08:18
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possible duplicate of [Specifying arguments with spaces for running a python script](http://stackoverflow.com/questions/11894815/specifying-arguments-with-spaces-for-running-a-python-script) – tutuDajuju Mar 17 '15 at 08:20
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I thin you are trying to execute this command over shell? And you are using `subprocess` module. Right? Try this: `subprocess.check_call(['-operation', 'update', '-contents', toPath])` and let me know whether it resolved the issue. – Moinuddin Quadri Mar 17 '15 at 08:26
3 Answers
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Pass argument in double quotes.
toPath = "\"C:/Program Files(x86)/bla\"";
Sumit Singh
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I'm not sure but it looks like you are trying to do a typical newcomer mistake.
If you are trying to run a command that is build from multiple variables you can be vulnerable to injection attacks. To prevent this, use the subprocess module and hand in all parameters as a list. The module will take care of all the stuff to make it work with spaces as well.
For example ls -l should be run as:
subprocess.call(["ls", "-l"])
Your example caontains [] and might be rather different but without it would be:
subprocess.call(['-operation','update', '-contents', toPath])
Please note that there are other functions than call() (which returns the return code only) in the subprocess module.
Klaus D.
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