Questions tagged [requirements.txt]
`requirements.txt` is the conventional name for a requirements file for Python package installation program `pip`. It's used in the command like `pip install -r requirements.txt`.
requirements.txt
673
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Automatically create file 'requirements.txt'
Sometimes I download the Python source code from GitHub and don't know how to install all the dependencies. If there isn't any requirements.txt file I have to create it by hand.
Given the Python ...
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answers
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How to state in requirements.txt a direct github source
I've installed a library using the command
pip install git+git://github.com/mozilla/elasticutils.git
which installs it directly from a Github repository. This works fine and I want to have that ...
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448
votes
20
answers
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Reference requirements.txt for the install_requires kwarg in setuptools setup.py file
I have a requirements.txt file that I'm using with Travis-CI. It seems silly to duplicate the requirements in both requirements.txt and setup.py, so I was hoping to pass a file handle to the ...
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6
answers
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In requirements.txt, what does tilde equals (~=) mean?
In the requirements.txt for a Python library I am using, one of the requirements is specified like:
mock-django~=0.6.10
What does ~= mean?
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Could not find a version that satisfies the requirement <package>
I'm installing several Python packages in Ubuntu 12.04 using the following requirements.txt file:
numpy>=1.8.2,<2.0.0
matplotlib>=1.3.1,<2.0.0
scipy>=0.14.0,<1.0.0
astroML>=0.2,&...
- 42.1k
265
votes
17
answers
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Upgrade python packages from requirements.txt using pip command
How do I upgrade all my python packages from requirements.txt file using pip command?
tried with below command
$ pip install --upgrade -r requirements.txt
Since, the python packages are suffixed ...
- 4,808
250
votes
5
answers
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views
requirements.txt vs setup.py
I started working with Python. I've added requirements.txt and setup.py to my project. But, I am still confused about the purpose of both files. I have read that setup.py is designed for ...
- 4,366
202
votes
6
answers
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Is there any way to show the dependency trees for pip packages?
I have a project with multiple package dependencies, the main requirements being listed in requirements.txt. When I call pip freeze it prints the currently installed packages as plain list. I would ...
- 25.6k
197
votes
4
answers
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How to customize a requirements.txt for multiple environments?
I have two branches, Development and Production. Each has dependencies, some of which are different. Development points to dependencies that are themselves in development. Likewise for Production. I ...
- 18.8k
168
votes
11
answers
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Is there a way to list pip dependencies/requirements?
Without going through with the installation, I want to quickly see all the packages that pip install would install.
- 4,095
167
votes
1
answer
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pip freeze creates some weird path instead of the package version
I am working on developing a python package. I use pip freeze > requirements.txt to add the required package into the requirement.txt file. However, I realized that some of the packages, instead of ...
- 2,332
131
votes
6
answers
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How to fix error with freetype while installing all packages from a requirements.txt file?
I ran the following command to install dependencies for a Python project?
# pip install requirements.txt
Collecting requirements.txt
Could not find a version that satisfies the requirement ...
- 41.1k
111
votes
2
answers
167k
views
Unable to install using pip install requirements.txt [closed]
I'm trying to install BitTornado for Python 2.7 using requirements.txt, I get the following error:
Collecting requirements.txt
Could not find a version that satisfies the requirement requirements....
- 1,177
100
votes
5
answers
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Delete unused packages from requirements file
Is there any easy way to delete no-more-using packages from requirements file?
I wrote a bash script for this task but, it doesn't work as I expected. Because, some packages are not used following ...
- 2,378
89
votes
3
answers
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Does Python requirements file have to specify version?
I have a requirements.txt file for a Python code base. The file has everything specified:
pytz==2017.2
requests==2.18.4
six==1.11.0
I am adding a new package. Should I list its version? If yes, ...
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88
votes
1
answer
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What does pip-compile do? What is its use? (how do I maintain the contents of my requirements.txt file?)
I read pip-compiles definition in pip-tools documentation but I don't understand how it works.
Q1: What is pip-compile's use?
Q2: What does compiling requirements.in to produce requirements.txt mean?
...
- 1,444
84
votes
4
answers
26k
views
Check if requirements are up to date
I'm using pip requirements files for keeping my dependency list.
I also try to follow best practices for managing dependencies and provide precise package versions inside the requirements file. For ...
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84
votes
10
answers
44k
views
How to specify install order for python pip?
I'm working with fabric(0.9.4)+pip(0.8.2) and I need to install some python modules for multiple servers. All servers have old version of setuptools (0.6c8) which needs to be upgraded for pymongo ...
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81
votes
1
answer
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Requirements.txt greater than equal to and then less than?
I have this line in my requirements file
django>=1.10,<1.11
Does that mean I need to have Django version >= 1.10 and then less than 1.11?
- 4,963
77
votes
6
answers
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tell pip to install the dependencies of packages listed in a requirement file
Developing a Django web app, I have a list of packages I need to install in a virtualenv. Say:
Django==1.3.1
--extra-index-url=http://dist.pinaxproject.com/dev/
Pinax==0.9b1.dev10
git+git://github....
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73
votes
4
answers
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pip freeze without dependencies of installed packages
When I do pip freeze I get the packages I've explicitly installed plus those packages that are dependencies of those packages.
For example:
$ pip install fabric
...
$ pip freeze
Fabric==1.0.1
...
- 6,705
62
votes
5
answers
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What does " -r " do in pip install -r requirements.txt
I looked up how to install multiple packages from a requirements document using pip. The answers were mostly:
pip install -r requirements.txt
What does the -r do though? I can't find an answer for ...
- 1,573
60
votes
5
answers
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Is requirements.txt still needed when using pyproject.toml?
Since mid 2022 it is now possible to get rid of setup.py, setup.cfg in favor of pyproject.toml. Editable installs work with recent versions of setuptools and pip and even the official packaging ...
- 15.1k
53
votes
3
answers
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How to create a requirements.txt? [duplicate]
I'm wondering how I can create a suitable requirements.txt for my Python 3 application?
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53
votes
9
answers
64k
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Check if my Python has all required packages
I have a requirements.txt file with a list of packages that are required for my virtual environment. Is it possible to find out whether all the packages mentioned in the file are present. If some ...
- 2,340
53
votes
1
answer
17k
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Is there something like requirements.txt for R? [closed]
In Python, you can have a file requirements.txt where you can store a list of packages used into a file, and whenever other people want to run your programs and need to install the dependencies, they ...
- 3,193
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votes
3
answers
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Equivalent of `package.json' and `package-lock.json` for `pip`
Package managers for JavaScript like npm and yarn use a package.json to specify 'top-level' dependencies, and create a lock-file to keep track of the specific versions of all packages (i.e. top-level ...
- 13.5k
41
votes
5
answers
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Install PyTorch from requirements.txt
Torch documentation says use
pip install torch==1.4.0+cpu torchvision==0.5.0+cpu -f https://download.pytorch.org/whl/torch_stable.html
to install the latest version of PyTorch. This works when I do ...
- 1,264
40
votes
2
answers
47k
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Quiet output from pip via requirements file?
pip has a -q/--quiet flag that works ideally from the command line. I'm using an automated deployment process (Amazon Elastic Beanstalk), and the tools use pip to install from a requirements file.
...
- 4,804
39
votes
3
answers
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Install local wheel file with requirements.txt
Have a local package ABC-0.0.2-py3-none-any.whl. I want to install it in the different project through requrements.txt. e.g.
requirements.txt
ABC==0.0.2
Flask==1.1.2
flask-restplus==0.13.0
gunicorn==...
- 425
38
votes
2
answers
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How to install python module extras with pip requirements.txt file
The pip requirements.txt documentation says that extras may be installed using a line like
MyPackage==3.0 [PDF]
So in my requirements.txt file I have a line that reads:
requests==2.9.1 [security]
...
- 2,217
37
votes
3
answers
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How to install from requirements.txt [duplicate]
I have to install python packages from requirements files that's provided to me. However, when I use pip install -r requirements.txt command I get an error saying ERROR: Invalid requirement (from ...
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votes
3
answers
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Installing Python Dependencies locally in project
I am coming from NodeJS and learning Python and was wondering how to properly install the packages in requirements.txt file locally in the project.
For node, this is done by managing and installing ...
- 1,143
35
votes
3
answers
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views
pip's requirements.txt best practice
I am trying to generate requirements.txt for someone to replicate my environment. As you may know, the standard way is
pip freeze > requirements.txt
I noticed that this will list all the ...
- 4,581
33
votes
2
answers
5k
views
Travis special requirements for each python version
I need unittest2 and importlib for python 2.6 that is not required for other python versions that travis tests against.
Is there a way to tell Travis-CI to have different requirements.txt files for ...
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votes
1
answer
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views
What does `-e .` in requirements.txt do? [duplicate]
From: https://github.com/brandon-rhodes/luca/blob/master/requirements.txt
ansi2html
pytest
sphinx
tox
-e .
What does the last line, -e ., do?
user9905759
28
votes
1
answer
26k
views
setup.py & pip: override one of the dependency's sub-dependency from requirements.txt
I'm currently working on a package and in my requirements.txt, I have a dependency: wikipedia. Now, wikipedia 1.3 uses requests-2.2.1 while my package uses version 2.3.0.
Also, as one would expect, ...
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25
votes
5
answers
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views
Building docs fails due to missing pandoc
The problem
I am having trouble getting my docs to build successfully when clicking "Build" on the readthedocs.io web interface, but it builds just fine on my local machine. To test that it is an ...
- 415
19
votes
4
answers
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Managing contents of requirements.txt for a Python virtual environment
So I am creating a brand new Flask app from scratch. As all good developers do, my first step was to create a virtual environment.
The first thing I install in the virtual environment is Flask==0.11....
- 7,300
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votes
3
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Creating requirements.txt in pip compatible format in a conda virtual environment
I have created a conda virtual environment on a Windows 10 PC to work on a project. To install the required packages and dependencies, I am using conda install <package> instead of pip install &...
user14477880
19
votes
1
answer
8k
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Check requirements for python 3 support
I have several python projects with different set of dependencies listed in pip requirements files. I've started to think about porting the code to python 3, but I need to know if my dependencies are ...
- 470k
19
votes
1
answer
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Include .whl installation in requirements.txt
How do I include this in the requirements.txt file?
For Linux:
pip install http://download.pytorch.org/whl/cu75/torch-0.1.12.post2-cp27-none-linux_x86_64.whl
pip install torchvision
FOR MacOS:
pip ...
- 9,676
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votes
2
answers
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views
How to format requirements.txt when package source is from specific websites?
I am trying to convert the following installation commands using pip that downloads from another website, into a requirements.txt format, but just can't figure out how. Can anyone assist?
pip install ...
- 2,772
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votes
3
answers
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views
How to cache requirements for a Django project on Travis-CI?
As Travis-CI is evolving and extending its feature set it naturally becomes nicer and nicer to use. I recently read this article about "Speeding up the build". A build for the Django project I am ...
- 896
17
votes
8
answers
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Robust way to ensure other people can run my python program
I wish to place a python program on GitHub and have other people download and run it on their computers with assorted operating systems. I am relatively new to python but have used it enough to have ...
- 7,875
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5
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pip installing environment.yml as if it's a requirements.txt
I have an environment.yml file, but don't want to use Conda:
name: foo
channels:
- defaults
dependencies:
- matplotlib=2.2.2
Is it possible to have pip install the dependencies inside an ...
- 1,927
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votes
2
answers
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pip requirement.txt conditionals or environment markers based on env variables
Is there a way to specify conditional installs in a pip requirements.txt file that are based on the value of an environment variable?
I've been able to control most of what I need with environment ...
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votes
2
answers
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views
Docker-compose does not reflect changes in requirements.txt
Changes in my requirements.txt are not being reflected when I run:
docker-compose -f docker-compose-dev.yml up -d
docker-compose-dev.yml
version: '3.6'
services:
web:
build:
context:...
- 9,925
15
votes
1
answer
4k
views
Caching pipenv / Pipfile dependencies on TravisCI
The Travis documentation on caching does not specifically mention how to cache python dependencies installed from pipenv's Pipfile, rather than from pip's usual requirements.txt. I tried setting up ...
- 15.2k
14
votes
3
answers
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views
Add pip requirements to docker image in runtime
I want to be able to add some extra requirements to an own create docker image. My strategy is build the image from a dockerfile with a CMD command that will execute a "pip install -r" command using a ...
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