I have a code as below. I run this code using python 3.7 idle, which runs successfully. But when I save it as file.py and run it from using cmd, it pops import module error. My code: Error : cannot import name ‘html’ from ‘lxml’ I can not understand when both are running on the same py…
How to download a file with plotly-dash on a multi-page app?
I already know about the following approach (link here): But the problem is, when I use a multi-page-approach like suggested from Plotly (link here (below “Structuring a Multi-Page App” – index.py)): I cannot use server.route because it will be caught by the callback shown above. What is the…
PyTorch DataLoader shuffle
I did an experiment and I did not get the result I was expecting. For the first part, I am using I save trainloader.dataset.targets to the variable a, and trainloader.dataset.data to the variable b before training my model. Then, I train the model using trainloader. After the training is finished, I save trai…
What does it mean to have “RFC-compliant” code?
I have heard the term RFC-compliant code in this talk at minute 1:00. What exactly does it mean? Answer RFC-compliant code is code that follows the formal requirements for the protocols in the TCP/IP stack as specified in a number of RFC (“request for comments”) documents published by the Internet…
Is there a way to print all substrings of a string in O(n) time?
I have an input abcde. I’m trying to output something like this: I can’t make a code which is without nested loops. My question is what is the solution of this problem with O(n) time complexity? My code is given below: Answer Lets do this without a nested loop! This a game with random library, but…
Importing data from URL using Python (into pandas dataframe)?
I’ve gone around in circles on this one. A bit frustrating as the solution is probably close at hand. Anyway, I found a URL that returns some data in CSV format. However, the URL itself does not contain the csv file name. In a web browser, I can easily go to the link and them I’m asked whether I w…
pywintypes.com_error: (-2147221008, ‘CoInitialize has not been called.’, None, None)
When I try to run this code as is I get this error “IDispatch = pythoncom.CoCreateInstance(IDispatch, None, clsctx, pythoncom.IID_IDispatch) pywintypes.com_error: (-2147221008, ‘CoInitialize has not been called.’, None, None)” , however if I run stp_tracker alone it works fine and if I…
How to handle “Redis.exceptions.ConnectionError: Connection has data”
I receive following output: I couldn’t find any issue related to this particular error. I emptied/flushed all redis databases, so there should be no data there. I assume it has something to do with eventlet and patching. But even when I put following code right at the beginning of the file, the error ap…
Reorder JSON in python
Hello I got a JSON in python : I need to reorder it to have this JSON : Answer You could use a collections.defaultdict to group by the inner dictionaries keys: Output: Or if you want a normal dict type: Output: Note: defaultdict is a subclass of dict, so the latter option is not needed.
Python Relative Import in Jupyter Notebook
Let’s say I have the following structure: In, code.ipynb, I simply want to access a function inside functions.py and tried this: I get the error: I have checked a bunch of similar posts but not yet figured this out… I am running jupyter notebook from a conda env and my python version is 3.7.6. Ans…