Code does not work in Spyder

[muriloasouza]

Issue Report Checklist

• [x] Searched the issues page for similar reports
• [x] Read the relevant sections of the Spyder Troubleshooting Guide and followed its advice
• [x] Reproduced the issue after updating with conda update spyder (or pip, if not using Anaconda)
• [x] Could not reproduce inside jupyter qtconsole (if console-related)
• [x] Tried basic troubleshooting (if a bug/error)
  • [x] Restarted Spyder
  • [x] Reset preferences with spyder --reset
  • [x] Reinstalled the latest version of Anaconda
  • [x] Tried the other applicable steps from the Troubleshooting Guide
• [x] Completed the Problem Description, Steps to Reproduce and Version sections below

Problem Description

A code to read some pdf pages with PyPDF2 library does not work in Spyder (tried in other IDEs like PyCharm or Juptyer Lab, and it works there).

What steps reproduce the problem?

1. Just run the following code:

import PyPDF2 as pyf 
file = 'MGLU_ER_3T20_POR.pdf'
file_pdf = pyf.PdfFileReader(file)
look_for = """|

Despesas com Vendas"""

i = 1
for page in file_pdf.pages:
    text_page = page.extractText()
    if look_for in text_page:
        print(f'Text present in page {i}')
    i += 1

EDIT: I don't know how to upload the .pdf file to run the code, but it can be downloaded here:

pdf file

It's a pdf with the sales results from a shop from Brazil.

What is the expected output? What do you see instead?

Expected output: The exact page in the PDF file where a string is present.

The string i am looking for is only present in page 10, hence, i expect to see from the print command inside the if condition

Text present in page 10

What i see: Nothing. The code runs, but nothing is printed.

Versions

• Spyder version: 5.2.0
• Python version: 3.8.0
• Qt version: 5.12.10
• PyQt version: 5.12.3
• Operating System name/version: Windows 10

Dependencies

# Mandatory:
atomicwrites >=1.2.0          :  1.4.0 (OK)
chardet >=2.0.0               :  4.0.0 (OK)
cloudpickle >=0.5.0           :  2.0.0 (OK)
cookiecutter >=1.6.0          :  1.7.3 (OK)
diff_match_patch >=20181111   :  20200713 (OK)
intervaltree >=3.0.2          :  3.1.0 (OK)
IPython >=7.6.0               :  7.30.1 (OK)
jedi >=0.17.2;<0.19.0         :  0.18.1 (OK)
jellyfish >=0.7               :  0.8.9 (OK)
jsonschema >=3.2.0            :  4.2.1 (OK)
keyring >=17.0.0              :  23.4.0 (OK)
nbconvert >=4.0               :  6.3.0 (OK)
numpydoc >=0.6.0              :  1.1.0 (OK)
paramiko >=2.4.0              :  2.8.1 (OK)
parso >=0.7.0;<0.9.0          :  0.8.3 (OK)
pexpect >=4.4.0               :  4.8.0 (OK)
pickleshare >=0.4             :  0.7.5 (OK)
psutil >=5.3                  :  5.8.0 (OK)
pygments >=2.0                :  2.10.0 (OK)
pylint >=2.5.0                :  2.12.2 (OK)
pyls_spyder >=0.4.0           :  0.4.0 (OK)
pylsp >=1.3.1;<1.4.0          :  1.3.2 (OK)
pylsp_black >=1.0.0           :  None (OK)
qdarkstyle =3.0.2             :  3.0.2 (OK)
qstylizer >=0.1.10            :  0.2.1 (OK)
qtawesome >=1.0.2             :  1.1.1 (OK)
qtconsole >=5.2.1;<5.3.0      :  5.2.1 (OK)
qtpy >=1.5.0                  :  1.11.3 (OK)
rtree >=0.9.7                 :  0.9.7 (OK)
setuptools >=49.6.0           :  58.0.4 (OK)
sphinx >=0.6.6                :  4.3.1 (OK)
spyder_kernels >=2.2.0;<2.3.0 :  2.2.0 (OK)
textdistance >=4.2.0          :  4.2.2 (OK)
three_merge >=0.1.1           :  0.1.1 (OK)
watchdog >=0.10.3             :  2.1.6 (OK)
zmq >=17                      :  22.3.0 (OK)

# Optional:
cython >=0.21                 :  None (OK)
matplotlib >=2.0.0            :  3.5.0 (OK)
numpy >=1.7                   :  1.21.4 (OK)
pandas >=1.1.1                :  1.3.4 (OK)
scipy >=0.17.0                :  1.7.3 (OK)
sympy >=0.7.3                 :  None (OK)

[ccordoba12]

Hey @muriloasouza, thanks for reporting. I can't reproduce this problem on Linux

@dalthviz, could you check on Windows? The command to install PyPDF2 is

conda install -c conda-forge pypdf2

Thanks!

[dalthviz]

I was able to replicate this by running the code directly in the console (running from a file works for me i.e I see the print statement):

Strangely I'm also able to see the print if I only run the for statement but just if I runned before the code as a file:

If I re-run all the code directly in the console and try to run just the for statement I can't see again the print:

[ccordoba12]

Thanks @dalthviz for checking that! This is very strange but I can confirm it on Linux as well.

@muriloasouza, we'll try to take a look at this in the coming months, but it's hard for us to say exactly when it's going to be fixed.

[muriloasouza]

Thank you @ccordoba12!