Currently I have some Python files which connect to an SQLite database for user inputs and then perform some calculations which set the output of the program. I’m new to Python web programming and I want to know: What is the best method to use Python on the web? Example: I want to run my Python files wh…
Tag: python
PyCharm showing wrong parameter info for PyQt methods
I don’t do a lot of work in GUI’s, but I’ve decided to move from occasionally using PyQt4 to PyQt5. My IDE is giving me warnings about some of the __init__ functions, particularly QWidget and QMainWindow. If you look at the IntelliSense’d parameters, you’ll see that the parentpar…
Using return value inside another function
I have these two functions: and When I run my script, it says that user_channel_number is not defined globally. How can I use user_channel_number inside the delete_events function? Answer Functions can not share their local variables. You can return the value from the first and pass it to the second: Or save …
How to use async await in python falcon?
I am looking for example of using async await features of python 3. I am using falcon framework for building rest api. Can’t figure out how to use async await with it. Please help me, by providing some examples, maybe with other frameworks. Thank you! Answer Update: as of Falcon 3.0, the framework suppo…
Prevent pandas read_csv treating first row as header of column names
I’m reading in a pandas DataFrame using pd.read_csv. I want to keep the first row as data, however it keeps getting converted to column names. I tried header=False but this just deleted it entirely. (Note on my input data: I have a string (st = ‘n’.join(lst)) that I convert to a file-like ob…
python, how to fill entire row? row(i).fill = PatternFill
My code currently does this, I’m wondering if there is a shorter way to write this? Answer A simple loop maybe? You could also move that configuration outside the loop if you’d like, that may make configuration easier: Or perhaps move it into a function:
Python API Rate Limiting – How to Limit API Calls Globally
I’m trying to restrict the API calls in my code. I already found a nice python library ratelimiter==1.0.2.post0 https://pypi.python.org/pypi/ratelimiter However, this library can only limit the rate in local scope. i.e) in function and loops Because I have several functions, which make API calls, in dif…
ImportError: No module named xgboost
When I tried import from python terminal I get this error, although I followed all the steps to install xgboost, somehow python is unable to get the package details.I am relatively new to python, I could easily install numpy and pandas packages,I used this link for installation on MACOSX http://xgboost.readth…
How to customize and add extra elements to Sympy plots?
I have a few questions about what how to work with graphics, using Sympy. My code: 1) The graph is obtained stretched along the x axis. How to make so that the curve looked like a circle? 2) How to add other elements to the chart. For example, the point O(0, 0) and the line y = x. Answer According
How to use await in a python lambda
I’m trying to do something like this: But I get this error: Which makes sense because the lambda is not async. I tried to use async lambda x: … but that throws a SyntaxError: invalid syntax. Pep 492 states: Syntax for asynchronous lambda functions could be provided, but this construct is outside o…