stringio

get index per ID – from example data using text input to pandas dataframe? easily reproducible Question: Text can be used as input to pandas dataframes to make easily reproducible examples for testing solutions.1 import pandas as pd from io import StringIO txt= """ ID,datetime,value AB-CL-34,07/10/2022 10:00:00,5 AB-CL-34,07/10/2022 11:15:10,7 AB-CL-34,09/10/2022 15:30:30,13 BX-RT-55,06/10/2022 11:30:22,0 BX-RT-55,10/10/2022 22:44:11,1 …

How to check what lineending a StringIO file is using? Question: I had a method that detects line endings def getLineEnding(filename): ret = "rn" with open(filename, ‘r’) as f: f.readline() ret = f.newlines return ret In order to be able to test it without using real files, I changed it to: def getLineEnding(filehandle): filehandle.readline() return …

"No columns to parse from file" error when trying to transform string into Pandas dataframe Question: I have a string object ("textData") which contains CSV data. I’m able to save it as CSV by: with open(fileName, "w") as text_file: print(textData, file=text_file) but I would like to work with the data in pandas before saving the …

pysftp putfo creates an empty file on SFTP server but not streaming the content from StringIO Question: My code first writes lines to a CSV in io.StringIO(): fileBuffer = io.StringIO() # write header header_writer = csv.DictWriter(fileBuffer, fieldnames=columnNames) header_writer.writeheader() # write lines writer = csv.writer(fileBuffer, delimiter=’,’) for line in data: line_dec = line.decode(‘ISO-8859-1’) # print([line_dec]) writer.writerow([line_dec]) …

python3 print to string Question: Using Python 3, I have a console application that I am porting to a GUI. The code has a bunch of print statements, something like this: print(f1(), f2(), f3(), sep=getsep(), end=getend()) I would like to convert these calls into something like: GuiPrintLine(f1(), f2(), f3(), sep=getsep(), end=getend()) where each line is …

Confusing about StringIO, cStringIO and ByteIO Question: I have googled and also search on SO for the difference between these buffer modules. However, I still don’t understand very well and I think some of the posts I read are out of date. In Python 2.7.11, I downloaded a binary file of a specific format using …

writing StringIO back to disk in python Question: I created an in-memory zip file using StringIO and zipfile: inMemoryZip = StringIO() outfile = zipfile.ZipFile(inMemoryZip, ‘w’, compression=zipfile.ZIP_DEFLATED) //outfile.write(stuff) inMemoryZip.seek(0) return inMemoryZip This data is uploaded to a server/database. At some point, it’s retrieved and I need to write it to disk as a zip file. I’m …

Python Flask send_file StringIO blank files Question: I want to process a Pandas dataframe and send it to download as a CSV without a temp file. The best way to accomplish this I’ve seen is to use StringIO. Using the code below, a file downloads with the proper name, however the file is completely blank, …

Python3 error: initial_value must be str or None, with StringIO Question: While porting code from python2 to 3, I get this error when reading from a URL TypeError: initial_value must be str or None, not bytes. import urllib import json import gzip from urllib.parse import urlencode from urllib.request import Request service_url = ‘https://babelfy.io/v1/disambiguate’ text = …

How can I resolve TypeError with StringIO in Python 2.7? Question: Trying to read following string as file using StringIO but getting the error below. How can I resolve it? >> from io import StringIO >>> >>> datastring = StringIO(“”” … Country Metric 2011 2012 2013 2014 … USA GDP 7 4 0 2 … …