If list index exists, do X
Could it be more useful for you to use the length of the list len(n) to inform your decision rather than checking n[i] for each possible length?
python-2.7
Fast ping sweep in python
Multiprocessing
Jupyter | The kernel appears to have died. It will restart automatically |
This issue happens when I import sklearn PCA before numpy (not sure reverse the sequence will solve the problem) But later I solved the issue by reinstalling numpy and mkl: conda install numpy and conda install -c intel mkl
python error: TypeError: an integer is required
The problem is that programs_width is a list. If none of these if statements trigger, then programs_width will still be a list here: which causes an error.
scrapy run spider from script
It is simple and straightforward 🙂 Just check the official documentation. I would make there a little change so you could control the spider to run only when you do python myscript.py and not every time you just import from it. Just add an if __name__ == “__main__”: Now save the file as myscript.py and run ‘python myscript.py`. Enjoy!
TypeError: argument of type ‘NoneType’ is not iterable
If a function does not return anything, e.g.: it has an implicit return value of None. Thus, as your pick* methods do not return anything, e.g.: the lines that call them, e.g.: set word to None, so wordInput in getInput is None. This means that: is the equivalent of: and None is an instance of NoneType which does not provide iterator/iteration functionality, so you get that type error. The fix … Read more
Split a python list into other “sublists” i.e smaller lists
I’d say If you are using python 2.x instead of 3.x, you can be more memory-efficient by using xrange(), changing the above code to:
Python 101: Can’t open file: No such file or directory
here’s a quick background: I am on day 1 of learning Python. No prior coding experience. Running Windows 8. Python 2.7 installed (location: C:\Python27). I have added the path “C:\Python27\;” to the environment variables and ‘.py:’ to PATHEXT. I am able to launch Python. To learn, I’m starting with the Google Developers course on Python. … Read more
matplotlib: RuntimeError: Python is not installed as a framework
I run my script in virtualenv. Python version is 3.5. Add a line: in file: This solved the problem. If you want to know more about why adding this solves the problem, you can read about customizing matplotlib’s backend. And TkAgg solves this issue because of it’s dependency with Tkinter.
ImportError: No module named google.cloud
The instructions on the “Cloud Speech API Client Libraries” documentation page are now valid and the install is successful, as desired. I installed the library for Python on my Debian machine using the command: pip install –upgrade google-cloud-speechShareImprove this answerFollowedited May 21 ’19 at 12:39