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How to set an environment variable only for the duration of the script?

On Linux (Ubuntu 11.04) in bash, is it possible to temporarily set an environment variable that will only be different from the normal variable for the duration of the script? For example, in a shell script, making an app that saves to HOME portable by temporarily setting HOME to a folder in the pre...
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Why #egg=foo when pip-installing from git repo

... per pip install -h the "egg" string is the directory that gets checked out as part of the install share | improve this answer | follow | ...
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Django ModelForm: What is save(commit=False) used for?

Why would I ever use save(commit=False) instead of just creating a form object from the ModelForm subclass and running is_valid() to validate both the form and model? ...
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C# Equivalent of SQL Server DataTypes

For the following SQL Server datatypes, what would be the corresponding datatype in C#? 5 Answers ...
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Cause of a process being a deadlock victim

...ith a Select which takes a long time to finish, on the order of 5 to 10 minutes. I am currently not using NOLOCK as a hint to the MS SQL database engine. At the same time we have another process doing updates and inserts into the same database and same tables. The first process has started,...
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Change Screen Orientation programmatically using a Button

I think this is implementable since screen rotation behaviour can go up to the application level. 5 Answers ...
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How to pip install a package with min and max version range?

I'm wondering if there's any way to tell pip, specifically in a requirements file, to install a package with both a minimum version ( pip install package>=0.2 ) and a maximum version which should never be installed (theoretical api: pip install package<0.3 ). ...
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How to sort with lambda in Python

In Python, I am trying to sort by date with lambda. I can't understand my error message. The message is: 4 Answers ...
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Relative paths in Python

..., you want to do something like this: import os dirname = os.path.dirname(__file__) filename = os.path.join(dirname, 'relative/path/to/file/you/want') This will give you the absolute path to the file you're looking for. Note that if you're using setuptools, you should probably use its package re...
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How to clone all repos at once from GitHub?

I have a company GitHub account and I want to back up all of the repositories within, accounting for anything new that might get created for purposes of automation. I was hoping something like this: ...