I am trying to use StringIO to capture stdout, in code that looks like this:
import sys from io import StringIO old_stdout = sys.stdout sys.stdout = mystdout = StringIO() print( "patate") mystdout.seek(0) sys.stdout = old_stdout print(mystdout.read()) Well, it is not exactly like this, since this works properly This code is actually run from C++ using the C Python API. This worked quite well, so the code was right at some point. But now, two things changed: - Now using python 3.11.7 instead of 3.7.12 - Now using only the python limited C API And it seems that now, mystdout.read() always misses the first two characters that have been written to stdout. My first ideas was something related to the BOM improperly truncated at some point, but i am manipulating UTF-8, so the bom would be 3 bytes, not 2. I ruled out wrong C++ code to extract the string from the python variable, since running a python print of the content of mystdout in the real stdout also misses the two first characters. Hopefully someone has a clue on what would have changed in Python for this to stop working compared to python 3.7? -- https://mail.python.org/mailman/listinfo/python-list
