I am trying to concat multiple CSVs that live in subfolders of my parent directory into a data frame, while also adding a new filename column. I can do something like this to concat all the CSVs into a single data frame But is there a way to also add the filename of each file as a column to the
Tag: concatenation
Concatenate text file lines with condition in python
I have a text file in this format: I want to check if the image name is the same and then concatenate those lines into one line with the following format: I have tried something like this but don’t know how to do the actual comparison and also don’t quite know what logic to apply since the first l…
How to concatenate strings in python?
I am doing automation in python for jira with the addition of jql search inside the service As a result: two JQL queries, one to search for “closed tickets” and the second to search for “created tickets” But as a result, I can’t add rows now. Expected Result: I got two lists insi…
append or concat a row to a pandas df without collapsing multiindex
I’m trying to add a sum total to an already existing pandas dataframe. The problem is that when I do this my multiindices become just normal indices. How can I prevent that? neither this nor this works Maybe there is also an easier way to add a sum? Answer You’re not really creating a MultiIndex d…
Concatenate two columns excepting strings from a list_pandas
I concatenate two columns for the situation where strings from column ‘words’ are not present in the column ‘sentence’. My code is: Additionally, I want to restrict the concatenation per row if, in column ‘words’ I have strings present in this list: Here is an example of ho…
Which way is better to concatenate strings in python? [closed]
Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 7 months ago. Improve this question Which way is better in this case and why? emails.append(user + ̶…
I want to add date range where value is True in pandas
Dt 1/2/21 2/2/21 3/2/21 4/2/21 5/2/21 6/2/21 7/2/21 Attendance(Expected output in python) san TRUE TRUE TRUE TRUE TRUE TRUE TRUE 1/2/21 – 7/2/21 don TRUE TRUE FALSE TRUE TRUE TRUE TRUE 1/2/21 -2/2/21,4/2/21-7/2/21 sam FALSE TRUE TRUE FALSE TRUE TRUE TRUE 2/2/21 – 3/2/21,5/2/21-7/2/21 den FALSE FAL…
How can I combine different dataframes into one csv in Python?
I have 2 dataframes with different columns. And I want to combine those into 1 csv file. Both headers should be included and there shouldn’t be empty value if columns aren’t matched. I tried to use pd.concat, but I need the result to be like below: Answer You can do this using Pandas to_csv and se…
Using recursion to concatenate two strings
My goal is to concatenate two strings using recursion. The input would be str1 = (“long string”) str2 = (“yes so long”) and the output would be: ‘lyoensg ssto rlionngg’ Assumptions are that both strings are the same length. My code as of now is: Im sure Im no where close bu…
Python: Concat dataframes where one of them is empty
I have the following dataframes: where df1 represents deposits and df2 represents withdrawals. I want to concat them to get I am calling an API that fetches withdrawals and deposits. So far, no withdrawals have been made but I want to display that as shown in “df” whenever the code is executed. An…