Combine CSV files using Python
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- Опубліковано 5 жов 2024
- Manually combining CSV files into one master is time consuming, and labor intensive, and especially if you have a large number of CSV files. So why not write a Python program to automate the task? And the best part is it will take less than 5 minutes to write the code.
In this tutorial, we will learn how to create a Python program to automate CSV files merging.
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You have no idea how much this videos has helped me... Amazing! I am gonna hit subscribe and press the bell icon to that... Cheers!
This is really helpful. What I liked about this code is that it is very short and simple.
After bullshiting my job interview, i found this video.. thank u
very useful. this is the only tutorial that gets me the right result. thank you very much
it hit right at the spot, many thanks
What a great video. Thank you for making it. It's amazing how powerful of a tool you can create from just a few lines of code. Thanks for the tutorial Jie!
just what I needed, thank you so much :D
thanks for your courses
Good stuff. How do I adjust the code when the csv files are located in a different location with the python file?
Your Subscription and hit like is really due on every learner.... Great teaches
Awesome as usual Jie Jenn.
Great video, just real confusing your miss pronunciation of the word "object", it sounds like Agile, which gets you confused
Thank you. Saved my time.
Thank you again.
Thank you, very helpful!!
Mine is showing dataframe has no attribute 'append'
thanks a lot for making this!
I have an error or NO COLUMN TO PARSE FROM FILE. How can I handle this?
Thanks Bro!
you didnt mentioned the specified path
Not sure if I understand your question.
@@jiejenn What I meant was inorder to read a file a specific file path is required, but in this case the file path is not given so where exactly is the data being retrieved from?
Please Google os.getcwd().
Mine is not saving the combined files but the script is not returning an error
Hi , I have two row headers so it skips one row but second row keeps on repeating. I dont want the headers to repeat only data to be concatenate under the first file header lines. can you help?
did you get your answer ? am also stuck
@@JAZZMAINAWABBS not yet, still waiting.....😐
really good video my friend
this helps a lot, and i have a question. what if there is non english in that csv files, how do you construct it to english?
You probably need to translate the content first.
How do I specify the folder from where I want to merge my files
line 7
if file.endswith('.csv')
^
SyntaxError: expected ':'
Process finished with exit code 1
This is de error code i get, is the any one who can help
You are missing a colon at the end.
Hey, great video, please do tell, if I want to merge all CSV files into one workbook but with different sheets only, like the combined workbook will have 3 sheets separately only. How to do that.
i believe there are been a change to the script for the DataFrame
for this line master_df = master_df.append(pd.read_csv(file))
^^^^^^^^^^^^^^^^^^^
the word append doesn't get recognized since the system throws an exception that says
AttributeError: 'DataFrame' object has no attribute 'append'. Did you mean: '_append'?
EDIT!!: on the line i have mentioned u need to add ._append instead of .append only just like this
master_df = master_df._append(pd.read_csv(file))
just copy what i did then change the variable name to your desire
I just tried, it is working for me. But if that still doesn't work for you, try master_df = pd.concat([master_df, pd.read_csv(file)], ignore_index=True)
love it!!!
What if i want to sum their data into 1 file
why are the files called AAPL if they are TSLA stock?
Becauseeeee !!!! ITTTT ITT ITTT DOESN'T MATTER WHAT YOU THINK IT IS !!!!!!!!!!!!!!!!! Cause Stone COLD SAID SO !!!!!
Hi thank for your great videos. I have a question, if I have many csv file in one folder ( such as a list stock files A.csv, B.csv,…..) and now I would like to take one column of each files ( such as “close price” column) and finally concatenate all of them to one file. So how can I do
You can combine all the files first into a master, then delete the columns you don't want.
@@jiejenn hi Thank for your reply, by the way, I have many csv file A.csv, B.csv, C.csv, D.csv, E.csv,…. in one folder, but how can I use “for loop “ to pick automatically specified one ( B, C, D) only but not all of them ?
@@nguyenduyta7136 I think you can put the needed files name in a list and loop over the list.
did the same code in VS code and got a lot of errors, where might be a problem?
Not sure.
Do you know how to solve the issue of no such file or directory. Even though it does exist?
Yes. The script cannot find the file.
pandas.errors.EmptyDataError: No columns to parse from file
i am getting this error
how can i solve it sir
Please Google the error for answers.
What can I do to combine CSV files by column and not by row? I want more than 300 files combined side by side. I would appreciate it if you could answer. Thanks!
Look into pandas concat method.
How to get N number of csv files as user input ?
Not sure if I understand your question.
@@jiejenn HI, Thanks For immediate response.
My query is i had some csv files , I need to take some of them as user input and combine them Into one single file and the perform some EDA.
Like some times 3 files as user input
Some files 5 files as user input.
Can you please put a video on how to save multiple dataframe to a single zip using pandas without saving as CSV
I don't think you can save a dataset as a zip file.
@@jiejenn well we can by using compression='gzip' while we calling to_csv() .... But I could not find a feasible way to compress multiple df in a single zip
@@shabs_jovial why don't you want to create the csv file first? Create it in other directory, use shutil.make_archive(output_filename, 'zip', dirname) to write the zip file, then delete the csv file.
@@alexybogomolov Thanks for tip. But I have limited space and have abundant RAM and my result dataframe is more than a GB to save as CSV. Likewise i have multiple scripts running on this condition. So when I tried to save as CSV and run , my other scripts fail due to the restrictions of my space
I dunno why, but mine is duplicated
I dunno why either.
hello sir, please make a video for .sav file combine using python
Hum... Not interested. Thank you.
Can you make this py file into a executable file? or use it as universal csv consolidator?
You can make a Python program an executable file with pyinstaller.