i am trying to use pip freeze > requirements.txt file and in my requirements.txt. i see HUL written between every word and version there. please help
i don't know what to try google not helping much
Try pipreq
pip install pipreq
To generate requiremnts file
pipreqs>requirements.txt
Related
I've been looking into the requirement.txt purpose through the Heroku website, but I've never understood what to truly add into that text file. I'm trying to host a bot using discord and the only thing I installed using pip install ... was selenium, discord. I understand it is the pip install package, but I see other people on youtube adding their git in it and such. Can someone help me understand this further so I can successfully upload a bot! Thank you!
Try putting these in requirements.txt:
git+https://github.com/Rapptz/discord.py
dnspython==1.16.0
PyNaCl==1.3.0
async-timeout==3.0.1
Also, make sure your txt file is named requirements (without .txt`)
I found this script (tutorial) on GitHub (https://github.com/amyoshino/Dash_Tutorial_Series/blob/master/ex4.py) and I am trying to run in my local machine.
Unfortunately I am having and Error
I would really appreciate if anyone can help me to run this script.
Perhaps this is something easy but I am new in coding.
Thank you!
You probably just need to pip install the dash-core-components library!
Take a look at the Dash Installation documentation. It currently recommends running these commands:
pip install dash==0.38.0 # The core dash backend
pip install dash-html-components==0.13.5 # HTML components
pip install dash-core-components==0.43.1 # Supercharged components
pip install dash-table==3.5.0 # Interactive DataTable component (new!)
pip install dash-daq==0.1.0 # DAQ components (newly open-sourced!)
For more info on using pip to install Python packages, see: Installing Packages.
If you have run those commands, and Flask still throws that error, you may be having a path/environment issue, and should provide more info in your question about your Python setup.
Also, just to give you a sense of how to interpret this error message:
It's often easiest to start at the bottom and work your way up.
Here, the bottommost message is a FileNotFound error.
The program is looking for the file in your Python37/lib/site-packages folder. That tells you it's looking for a Python package. That is the directory to which Python packages get installed when you use a tool like pip.
I'm trying to install SerpentAI, and I've followed the steps word for word (except the Redis one), but I keep getting this error.
I think it's because I didn't install Redis, but I don't know how to do that. I downloaded it from GitHub, but I'm not sure what to do with it.
Here's a link to the documentation I was following, if it helps. I was right at the "run pip install serpentai"
Thanks so much!
Given requirements.txt and a virtualenv environment, what is the best way to check from a script whether requirements are met and possibly provide details in case of mismatch?
Pip changes it's internal API with major releases, so I seen advices not to use it's parse_requirements method.
There is a way of pkg_resources.require(dependencies), but then how to parse requirements file with all it's fanciness, like github links, etc.?
This should be something pretty simple, but can't find any pointers.
UPDATE: programmatic solution is needed.
You can save your virtualenv's current installed packages with pip freeze to a file, say current.txt
pip freeze > current.txt
Then you can compare this to requirements.txt with difflib using a script like this:
import difflib
req = open('requirements.txt')
current = open('current.txt')
diff = difflib.ndiff(req.readlines(), current.readlines())
delta = ''.join([x for x in diff if x.startswith('-')])
print(delta)
This should display only the packages that are in 'requirements.txt' that aren't in 'current.txt'.
Got tired of the discrepancies between requirements.txt and the actually installed packages (e.g. when deploying to Heroku, I'd often get ModuleNotFoundError for forgetting to add a module to requirements.)
This helps:
Use compare-requirements (GitHub)
(you'll need to pip install pipdeptree to use it.)
It's then as simple as...
cmpreqs --pipdeptree
...to show you (in "Input 2") which modules are installed, but missing from requirements.txt.
You can then examine the list and see which ones should in fact be added to requirements.txt.
I'm using an Ipython2.7 notebook to run some code. Recently discovered that all my data was corrupted and I need to do it all again (meaning I am very very behind schedule) I figured I could half the time required if I could run it on a second computer. So I've gone into a uni computer cluster where the computers have python 2.7 installed. I can open the notebook, but it won't run as the first line is
import mlpy.wavelet
And it gives me an import error. I've tried downloading and installing it from sourceforge, but it seems to install it to the a Q drive, which I don't have access to. I am completely lost on what to do here, I can't even remember how I first installed it on my laptop. I have a feeling I pip installed it but I have no clue how to do this on a uni comp.
Any rapid responses would be greatly appreciated
You can use pip to install packages in your user's home directory.
Run pip install --user mply to install mply and your other dependencies.
See this answer for reference.