Update the packages in a requirements.txt file.

pip install pur

Give pur your requirements.txt file and it updates all your packages to the latest versions.

For example, given a requirements.txt file:

flask==0.9
sqlalchemy==0.9.10
alembic==0.8.4

Running pur on that file updates the packages to current latest versions:

$ pur -r requirements.txt
Updated flask: 0.9 -> 0.10.1
Updated sqlalchemy: 0.9.10 -> 1.0.12
Updated alembic: 0.8.4 -> 0.8.6
All requirements up-to-date.

Pur never modifies your environment or installed packages, it only modifies your requirements.txt file.

-r, --requirement PATH The requirements.txt file to update; Defaults to

using requirements.txt from the current directory if it exist.

-o, --output PATH Output updated packages to this file; Defaults to

overwriting the input requirements.txt file.

-i, --interactive Interactively prompts before updating each package. -f, --force Force updating packages even when a package has no version specified in the input requirements.txt file. -d, --dry-run Output changes to STDOUT instead of overwriting the requirements.txt file. -n, --no-recursive Prevents updating nested requirements files. -s, --skip TEXT Comma separated list of packages to skip updating. --only TEXT Comma separated list of packages. Only these packages will be updated. -z, --nonzero-exit-code Exit with status l0 when all packages up-to-date, 11 when some packages were updated. Defaults to exit status zero on success and non-zero on failure. --version Show the version and exit. --help Show this message and exit.

Before contributing a pull request, make sure tests pass:

virtualenv venv
. venv/bin/activate
pip install tox
tox

Many thanks to all contributors!