I have a datetime string like: I used strptime() function in datetime module to convert the string to datetime object. My datetime format is “%Y-%m-%dT%H:%M:%S.%f” When I parse this above string, the function raises ValueError because of missing millisecond part in the string. How can I have datet…
How to rename files from old to new from csv file using python?
I have a CSV file which has two columns: I have more than a thousand pictures which I need to rename using this method. Can this be done using python? Thanks a lot. Answer You can use zip to iterate over pairs of corresponding items: As you are batch processing a large number of files, it might also be worth
How to make a shape a button in Tkinter
Is there a way to make a shape a button in a tkinter canvas? Or, to put it simply, is there a way to figure out if the user clicked the rectangle drawn above? Answer I don’t know how to see if someone clicks the rectangle but you could have the color change if a cursor hovers over it… I’m
Filter and sort inputed list of integers for non negative numbers python
I am trying to take a list that a user inputs, filter and sort in ascending order but only for the non-negative numbers. I thought I understood how to do this but it will not work with my logic. Here is the error I receive: ValueError: invalid literal for int() with base 10: ’10 -7 4 39 -6 12 2′
how to replace itrerows function in pandas dataframe
how to replace itrerows function in pandas dataframe Answer You don’t show any sample data, but it seems you could use Assuming image_folder is a string
How to save a calculated column in SQLAlchemy?
I would like to know how to save a calculated value in a clean way in the database: An example (taken from the SQLAlchemy manual): So length is calculated. But for easier query look-ups (in another database tool), I would like to have this length saved as well into the table. So my first crude test was to sim…
How to Convert From HEIC to JPG in Python on WIndows
Im trying to convert HEIC to JPG using python. The only other answers about this topic used pyheif. I am on windows and pyheif doesn’t support windows. Any suggestions? I am currently trying to use pillow. Answer code below convert and save the picture as png format
Can’t install xmlsec using PIP command
pip install xmlsec commands throws the below error. I don’t know how to resolve this issue. I tried to install other xmlsec package too, nothing worked. Answer Xmlsec listed here https://pypi.org/project/xmlsec/. The below command should install for download required native libraries.
How to annotate each segment of a stacked bar chart
I’ve been trying to annotate each sub-amount of a stacked bar chart with its values like the picture shown above (values not accurate, just an example). Data frame that I used: The linked post is somewhat similar to my question but I do not understand the code given in that answer nor were there any exp…
How to use a django abstract class with graphene-django?
I’m trying to have a unique interface for two concrete classes that are similar and inherit from a common abstract class. My django model classes: My graphene-django api: When querying the graphql mutation corresponding to CreateMetadata, the metadata concrete class is successfully created. ;-) The prob…