Python--how to use Python Pip/pur

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1. Description of the package in the PUR update requirements.txt file:

• To install Pur:

• Pip Install Pur

How to use

use purrequirements.txt file, then it will update your package to the latest version.

For example, there is a requirements.txt file as follows:

flask==0.9

sqlalchemy==0.9.10

alembic==0.8.4

Use this Requirements.txt files running pur will upgrade these packages to the latest version:

$ 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

When you are finished, you will see a prompt for "all required packages have been updated".

Pur never modifies your running environment or a package that has already been installed, it just modifies your requirements.txt file.

Options available

-R,--requirement PATH

Update the required Requirements.txt file, by default, will be looked up from the current directory and used if the file exists.

-O,--output PATH

output The updated package to a file, which is overwritten by default Requirements.txt file.

-F,--force

force the update package, even if the Requirements.txt The program's version number is not given in the

-Z,--nonzero-exit-code

when all the packages are updated, the exit code is ten, and if part of the update exits the code one by one. By default , 0 is the update success, and nonzero for the update is unsuccessful.

-S,--skip TEXT

comma-separated packages that do not need to be updated

--version

display The PUR version number and exit

--help

Display this help message and exit

Contribute to your code

Before you provide a pull request, confirm the test pass as follows:

Virtualenv venv

. Venv/bin/activate

Pip Install Tox

Tox

Thank you very much for all of our contributors!

English Original: https://github.com/alanhamlett/pip-update-requirements
Translator: Lappy

This article is from the "Mr_computer" blog, make sure to keep this source http://caochun.blog.51cto.com/4497308/1773166

Python--how to use Python Pip/pur