I try to run pip wheel azure-mgmt=0.20.1, but whenever I run it I get following pip wheel error, which is very clear:
error: [Error 183] Cannot create a file when that file already exists: 'build\\bdist.win32\\wheel\\azure_mgmt-0.20.0.data\\..'
So my question is where or how I can find that path? I want to delete that existing file. I have been searching my local computer, searched for default path in Google, but still didn't find any solution.
Also is it possible to tell pip wheel to output full log? As you can see that full error path is not displayed. I'm using virtualenv.
We can see the description of virtual env at the official python guide:
To help manage external package dependencies, Azure Git deployment supports the creation of virtual environments.
When Azure detects a requirements.txt in the root of the repository, it automatically creates a virtual environment named env. This only occurs on the first deployment, or during any deployment after the selected Python runtime has changed.
You can directly modify the dependencies and versions of them in requirement.txt, then deploy your python app to Azure Web App via git, Azure will update the python packages automatically. You can check the packages in the virtual env folder which path is env\Lib\site-packages in the root directory of your site. You can login on the kudu console of your site to check your files of you site online, the URL should be: https://{your_site_name}.scm.azurewebsites.net/DebugConsole .
Additionally, according your description, it seems that you use the global python environment to run pip install command which may directly install packages in your global python environment. To install packages in your virtual env, you need to run the similar command env\scripts\pip install -r requirements.txt in your root directory of your application. Please refer to Web app development - Windows - command line for more information.
have you tried uninstalling and reinstalling?
I tried pip wheel azure-mgmt and that installed -0.20.1 for me.
The directory for mine is /Users/me/wheelhouse, so you could look there. I found that in the initial log of the build.
#Amir,
One option is that you could generate the requirement.txt file and remove your virtual environment if you used Visual studio to develop your application. Then you can add a new virtual environment for your project and install all packages from requirement.txt file. Or after removed your virtual environment, you can try pip wheel azure-mgmt command.
And another option is that you can follow this similar issue：https://vilimpoc.org/blog/2014/01/18/time-robbing-python-errors/
The blogger modified the LOCALAPPDATA path to resolve this issue. Please try it.
Related
I wanted to install the PIP module on the server but i cant install anything on the server
as I do not have root access to it ..
Support suggested -
You cannot (and we will not) use "pip" to install them into the system Python directories. You will need to manually build and install it into your build directories in your development server and then package it with your code.
Instructions for separating the python "build" step from the "install" step can be obtained from wherever you got the module.
Here are some instructions on the Python website that may be useful:
https://docs.python.org/2.7/install/index.html#alternate-installation-the-user-scheme
You could just create a virtual environment and install your packages there
https://docs.python.org/3/library/venv.html
I'm new to python, and I was wondering if you could help me run a python script. I'm trying to run a script called PunchBox from Github: https://github.com/psav/punchbox. So far, I have Python 3.9.5 and Git Bash.
In the GitHub page, it says:
To install, clone the repo, cd into it and then execute the following:
virtualenv -p python2 .pb2
source .pb2/bin/activate
pip install -U pip
pip install .
What does this mean exactly? Where do I run this code?
So far, I tried downloading the zip file from GitHub, installing Python 3.5.9, using cmd, finding the directory with cd, and running that code; but got an error:
Exception: Versioning for this project requires either an sdist tarball, or access to an upstream git repository. It's also possible that there is a mismatch between the package name in setup.cfg and the argument given to pbr.version.VersionInfo. Project name punchbox was given, but was not able to be found.
error in punchbox setup command: Error parsing C:\Users\Mi\Downloads\punchbox-master\punchbox-master\setup.cfg: Exception: Versioning for this project requires either an sdist tarball, or access to an upstream git repository. It's also possible that there is a mismatch between the package name in setup.cfg and the argument given to pbr.version.VersionInfo. Project name punchbox was given, but was not able to be found.
There's also a requirements.txt that lists additional scripts needed:
pre-commit
click
mido
pbr
PyYAML
svgwrite
Do these install automatically upon running the script for the first time?
I'm a little confused why I'm getting an error. Do you know what I'm doing wrong?
Thank you so much!
Giovanni
I assume you are new to programming. You have to write these lines in a terminal.
On Windows, it is Command Prompt or PowerShell Applications (latter preferred). On macOS, it is terminal
Copy all these lines at once, and paste them to your preferred terminal. The terminal will automatically run these one after the another.
FYI: Venv is a python package to create a virtual environment. The preceding commands set up the environment. Now install the required dependencies using this command instead of the last command (pip install .)
pip install -r requirements.txt
Based on your comment, it looks like you don't have virtualenv installed in your system. You may install it using the command pip install virtualenv.
Now, as you are using a Windows machine, you may open a Command Prompt or Windows PowerShell window and navigate to the directory where your cloned project resides.
Now, execute the following commands.
virtualenv -p python2 .pb2
.pb2\Scripts\activate.bat
pip install -U pip
pip install -r requirements.txt
Once you are done working in your virtual environment (which is named .pb2), you may close it by executing deactivate command.
#Giovanni T.
See, as far as you have installed Python and also downloaded the GitHub Repository as a zip file.
pip install -r requirements.txt
Just run this command.
Please make sure that the directory is pointing to the folder where this requirements.txt file is stored.
I'm trying to create a forum application using Python.
I've realized that in order to do that I must install Virtualenv and a framework such as flask.
First I tried to install Virtualenv with the help of internet tutorial using the command "pip install virtualenv" and I got this Error:
ERROR: Could not install packages due to an EnvironmentError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Max retries exceeded with url: /packages/84/3a/9d656ec2535fa5f6680d55ef93a05f890bd1b2ad6f2bf97b34a679abf365/virtualenv-20.0.13-py2.py3-none-any.whl (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1108)')))
then I searched in the web for a solution and tried using the command :
pip install --trusted-host=pypi.org --trusted-host=files.pythonhosted.org --user virtualenv
It seemed to do the trick at the time but then I tried to move along with creating an Environment using the commands: ls, cd, vi, etc and the cmd didn't recognize them...
Do you have any idea what seems to be the problem and how can I fix it? I am pretty new to Python..
Thanks in advance! :)
enter image description here
If you have no particular reason for using virtualenv, you can use venv to create a virtual environment to run your application in. venv is built into all newer versions of Python, and therefore does not require installation.
Follow the following steps to set up a venv virtual environment for the project to run in:
Open a Bash session:
on Linux: open a terminal
on Windows: open Git Bash (much more convenient than cmd in this context)
Navigate to the directory in which you want your virtual environment to be stored in.
Create a new virtual environment called "myvenv":
on Windows:
python -m venv myvenv
on Linux:
python3 -m venv myvenv
Activate the virtual environment:
on Windows:
myvenv/Scripts/activate
on Linux:
source myvenv/bin/activate
(you will see (myvenv) in front of your command prompt, if it is activated)
If you documented all your requirements in a requirements.txt file like e.g.
Flask==1.1.1
requests==2.22.0
you can install all dependencies with
pip install -r requirements.txt
Otherwise you have to install every package separately with
pip install [PACKAGE]
To run your python application within this virtual environment, activate the environment first and then run
python [YOUR_FILE_NAME_HERE].py
As requested in the comments by OP, here a little bit more background on this:
Python is an interpreted language. If your application has dependencies (e.g. Flask), those dependencies must be accessible to the interpreter. Otherwise your application will not run. You can install the packages for your dependencies e.g. with pip.
Since different applications have different dependencies and sometimes even different specific versions of a package, it is not wise to install packages system-wide. Instead, one uses virtual environments to create a dedicated isolated environment for every project to run in.
This means that each project can have its own dependencies, regardless
of what dependencies every other project has.
(see this Real Python article)
To make it easier to get the virtual environment with all the necessary dependencies for your project running on different systems, it is common practice to document all your project’s dependencies in a requirements.txt file. This way everyone trying to run your project, knows exactly which dependencies your project has. Additionally, you do not have to install every package separately within a newly created virtual environment but can use a one-line command for pip to install all dependencies listed within the requirements.txt file.
I'm used to using pip to install Python packages into my Django projects' virtual environments.
When I am working with a Divio Docker project locally, this does not work.
There are two things you need to be aware of when installing Python packages into a Docker project:
the package must be installed in the correct environment
if you want to use the installed package in the future, it needs to be installed in a more permanent way
The details below describe using a Divio project, but the principle will be similar for other Docker installations.
Installation in the correct environment
To use pip on the command line to install a Python package into a Dockerised project, you need to be using pip inside the Docker environment, that is, inside the container.
It's not enough to be in the directory where you have access to the project's files. In this respect, it's similar to using a virtual environment - you need to have the virtualenv activated. (Otherwise, your package will be installed not in the virtual environment, but on your own host environment.)
To activate a virtual environment, you'd run something like source bin/activate on it.
To install a package within a Divio web container:
# start a bash prompt inside the project
docker-compose run --rm web bash
# install the package in the usual way
pip install rsa
rsa is now installed and available to use.
More permanent installation
So far however, the package will only be installed and available in that particular container. As soon as you exit the bash shell, the container will disappear. The next time you launch a web container, you will not find the rsa package there. That's because the container is launched each time from its image.
In order to have the package remain installed, you will need to include it in the image.
A Divio project includes a requirements.in file, listing Python packages that will be included in the image.
Add a new line containing rsa to the end of that file. Then run:
docker-compose build web
This will rebuild the Docker image. Next time you launch a container with (for example) docker-compose run --rm web bash, it will include that Python package.
(The Divio Developer Handbook has some additional guidance on using pip.)
Note: I am a member of the Divio team. This question is one that we see quite regularly via our support channels.
I'm new to virtualenv but I'm writting django app and finally I will have to deploy it somehow.
So lets assume I have my app working on my local virtualenv where I installed all the required libraries. What I want to do now, is to run some kind of script, that will take my virtualenv, check what's installed inside and produce a script that will install all these libraries on fresh virtualenv on other machine. How this can be done? Please help.
You don't copy paste your virtualenv. You export the list of all the packages installed like -
pip freeze > requirements.txt
Then push the requirements.txt file to anywhere you want to deploy the code, and then just do what you did on dev machine -
$ virtualenv <env_name>
$ source <env_name>/bin/activate
(<env_name>)$ pip install -r path/to/requirements.txt
And there you have all your packages installed with the exact version.
You can also look into Fabric to automate this task, with a function like this -
def pip_install():
with cd(env.path):
with prefix('source venv/bin/activate'):
run('pip install -r requirements.txt')
You can install virtualenvwrapper and try cpvirtualenv, but the developers advise caution here:
Warning
Copying virtual environments is not well supported. Each virtualenv
has path information hard-coded into it, and there may be cases where
the copy code does not know it needs to update a particular file. Use
with caution.
If it is going to be on the same path you can tar it and extract it on another machine. If all the same dependencies, libraries etc are available on the target machine it will work.