Fix Python – How to use requirements.txt to install all dependencies in a python project

I am new to python. Recently I got a project written by python and it requires some installation. I run below command to install but got an error.
# pip install requirements.txt
Collecting requirements.txt
Could not find a version that satisfies the requirement requirements.txt (from versions: )
No matching distribution found for requirements.t….

Fix Python – 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 prefer to also get their dependency relationships, something like this:
Flask==0.9
Jinja2==2.7
Werkzeug==0.8.3

Jinja2==2.7

Werkzeug==0.8.3

F….

Fix Python – 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 redistributable things and that requirements.txt is designed for non-redistributable things. But I am not certain this is accurate.
How are those two files truly….

Fix Python – 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 with the version number (Django==1.5.1) they don’t seem to upgrade. Is there any better approach than manually editing requirements.txt file?
EDIT
As And….

Fix Python – Could not find a version that satisfies the requirement

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,<1.0 scikit-learn>=0.14.1,<1.0.0 rpy2>=2.4.3,<3.0.0 and these two commands: $ pip install --download=/tmp -r requirements.txt $ pip install --user --no-index --find-links=....

Fix Python – 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 install_requires kwarg in setuptools.setup.
Is this possible? If so, how should I go about doing it?
Here is my requirements.txt file:
guessit>=0.5.2
tvdb_ap….

Fix Python – 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 dependency in my requirements.txt. I’ve looked at other tickets like this but that didn’t solve my problem. If I put something like
-f git+git://github….