[](https://github.com/alanhamlett/pip-update-requirements/actions)
[](https://codecov.io/gh/alanhamlett/pip-update-requirements)
[](https://pypi.python.org/pypi/pur)
[](https://pypi.python.org/pypi/pur)
[](https://wakatime.com/)
# pip-update-requirements
Update the packages in a `requirements.txt` file.
## Installation
pip install pur
## Usage
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 -> 1.0.2
Updated sqlalchemy: 0.9.10 -> 1.2.8
Updated alembic: 0.8.4 -> 0.9.9
All requirements up-to-date.
Pur never modifies your environment or installed packages, it only modifies
your `requirements.txt` file.
You can also use Pur directly from Python:
$ python
Python 3.6.1
>>> from pur import update_requirements
>>> print([x[0]['message'] for x in update_requirements(input_file='requirements.txt').values()])
['Updated flask: 0.9 -> 1.0.2', 'Updated sqlalchemy: 0.9.10 -> 1.2.8', 'Updated alembic: 0.8.4 -> 0.9.9']
>>> print(open('requirements.txt').read())
flask==1.0.2
sqlalchemy==1.2.8
alembic==0.9.9
## Options
-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.
--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.
--dry-run-changed Enable dry run and only output packages with
updates, not packages that are already the latest.
-n, --no-recursive Prevents updating nested requirements files.
--skip TEXT Comma separated list of packages to skip updating.
--skip-gt Skip updating packages using > or >= spec, to allow
specifying minimum supported versions of packages.
--index-url TEXT Base URL of the Python Package Index. Can be
provided multiple times for extra index urls.
--cert PATH Path to PEM-encoded CA certificate bundle. If
provided, overrides the default.
--no-ssl-verify Disable verifying the server's TLS certificate.
--only TEXT Comma separated list of packages. Only these
packages will be updated.
--minor TEXT Comma separated list of packages to only update
minor versions, never major. Use "*" to limit every
package to minor version updates.
--patch TEXT Comma separated list of packages to only update
patch versions, never major or minor. Use "*" to
limit every package to patch version updates.
--pre TEXT Comma separated list of packages to allow updating
to pre-release versions. Use "*" to allow all
packages to be updated to pre-release versions. By
default packages are only updated to stable
versions.
-z, --nonzero-exit-code Exit with status 1 when some packages were updated,
0 when no packages updated, or a number greater
than 1 when there was an error. By default, exit
status 0 is used unless there was an error
irregardless of whether packages were or not
updated.
--version Show the version and exit.
--help Show this message and exit.
## Contributing
Before contributing a pull request, make sure tests pass:
virtualenv venv
. venv/bin/activate
pip install tox
tox
Many thanks to all [contributors](https://github.com/alanhamlett/pip-update-requirements/blob/master/AUTHORS)!
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