[Bug] PySimpleGUIWeb - ModuleNotFoundError: No module named 'HTMLParser'

[rowlesmr]

Type of Issue (Enhancement, Error, Bug, Question)

Bug. When installing PySimpleGUIWeb, remi <=2020.3.10 is installed as a dependency.

ModuleNotFoundError: No module named 'HTMLParser' is actually thrown by remi

Issue can be solved by updating remi.

---

Operating System

Windows 10

PySimpleGUIWeb

---

Versions

Python version (sg.sys.version)

3.9.4

PySimpleGUI Version (sg.__version__)

0.39.0

GUI Version (tkinter (sg.tclversion_detailed), PySide2, WxPython, Remi)

remi 2020.3.10

Your Experience In Months or Years (optional)

2 Years Python programming experience
5 Years Programming experience overall
Have used another Python GUI Framework? pysimplegui tkinter version

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Troubleshooting

These items may solve your problem. Please check those you've done by changing - [ ] to - [X]

• Searched main docs for your problem www.PySimpleGUI.org
• Looked for Demo Programs that are similar to your goal Demos.PySimpleGUI.org
• If not tkinter - looked for Demo Programs for specific port
• For non tkinter - Looked at readme for your specific port if not PySimpleGUI (Qt, WX, Remi)
• Run your program outside of your debugger (from a command line)
• Searched through Issues (open and closed) to see if already reported Issues.PySimpleGUI.org
• Tried using the PySimpleGUI.py file on GitHub. Your problem may have already been fixed but not released

Detailed Description

I've just tried the simple introductory GUI as outlined on pysimplegui. pysimpleguiweb was installed by pip install, which then installed remi as a dependency.

Python 3.9.4
PySimpleGUIWeb 0.39.0
remi 2020.3.10

The program

import PySimpleGUIWeb as sg
layout = [[sg.Text("What's your name?")], [sg.Input()], [sg.Button('Ok')]]
window = sg.Window('Window Title', layout)
event, values = window.read(close=True)

and it fails with

Traceback (most recent call last):
  File "C:\Users\________\AppData\Local\Programs\Python\Python39\Lib\site-packages\remi\gui.py", line 32, in <module>
    from HTMLParser import HTMLParser
ModuleNotFoundError: No module named 'HTMLParser'

and then some more exceptions because of that exception.

Updating remi as pip install remi --update solved the issue.

Screenshot, Sketch, or Drawing

---

Watcha Makin?

Data visualisation tool using plotly.

[jason990420]

There should be no exception for from HTMLParser import HTMLParser in line 32 for following code in remi\gui.py of remi 2020.3.10

try:
    # Python 2.6-2.7
    from HTMLParser import HTMLParser        # Line 32
    h = HTMLParser()
    unescape = h.unescape
except ImportError:
    # Python 3
    try:
        from html.parser import HTMLParser
        h = HTMLParser()
        unescape = h.unescape
    except ImportError:
        # Python 3.4+
        import html
        unescape = html.unescape

It should be following exception, you can find it is happened at line 40.

Traceback (most recent call last):
  File "<module1>", line 1, in <module>
  File "C:\Software\Python\lib\site-packages\PySimpleGUIWeb\__init__.py", line 2, in <module>
    from .PySimpleGUIWeb import *
  File "C:\Software\Python\lib\site-packages\PySimpleGUIWeb\PySimpleGUIWeb.py", line 14, in <module>
    import remi
  File "C:\Software\Python\lib\site-packages\remi\__init__.py", line 1, in <module>
    from .gui import Widget, Button, TextInput, \
  File "C:\Software\Python\lib\site-packages\remi\gui.py", line 40, in <module>
    unescape = h.unescape
AttributeError: 'HTMLParser' object has no attribute 'unescape'

To solve issue about AttributeError: 'HTMLParser' object has no attribute 'unescape', you can refer issue #4119.

After update remi now, then it will be remi-2021.3.2

[rowlesmr]

I added this as a pysimplegui bug, as a new install of pysimpleguiweb requires a version of remi that doesn't work.

[MattiaFinocchi-bloomon]

I don't manage to have the updated version of remi with the current version of pysimpleguiweb.

pip install remi --upgrade
Requirement already satisfied: remi in ./_myvenv_/lib/python3.9/site-packages (2020.3.10)
Collecting remi
  Using cached remi-2021.3.2-py3-none-any.whl (518 kB)
Installing collected packages: remi
  Attempting uninstall: remi
    Found existing installation: remi 2020.3.10
    Uninstalling remi-2020.3.10:
      Successfully uninstalled remi-2020.3.10
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pysimpleguiweb 0.39.0 requires remi<=2020.3.10, but you have remi 2021.3.2 which is incompatible.
Successfully installed remi-2021.3.2

So when I try to start a program using pysimpleguiweb I get this error:

./KPS_webapp.py 
Traceback (most recent call last):
  File "/home/_user_/Projects/KPS/./KPS_webapp.py", line 6, in <module>
    import PySimpleGUIWeb as sg
  File "/home/_use_r/.local/lib/python3.9/site-packages/PySimpleGUIWeb/__init__.py", line 2, in <module>
    from .PySimpleGUIWeb import *
  File "/home/_user_/.local/lib/python3.9/site-packages/PySimpleGUIWeb/PySimpleGUIWeb.py", line 14, in <module>
    import remi
ModuleNotFoundError: No module named 'remi'

[jason990420]

When you pip install remi --upgrade, the message say
"Requirement already satisfied: remi in

./_myvenv_/lib/python3.9/site-packages

(2020.3.10)"

When you run script, the message say
'File

"/home/user/.local/lib/python3.9/site-packages

/PySimpleGUIWeb/PySimpleGUIWeb.py", line 14, in '

It is clear that you install library and run script in different locations, or different python environments.
Please check where the installation and where the script executed.

[MattiaFinocchi-bloomon]

Hi @jason990420 , thanks for letting me notice that. Now I am running the two commands from the same folder in the same virtual environment. I'll just change my username into username and hostname into hostname in the code for privacy.

(KPS_WEB_venv) user@hostname: ~/Projects/KPS $pip install remi --upgrade
Requirement already satisfied: remi in ./KPS_WEB_venv/lib/python3.9/site-packages (2020.3.10)
Collecting remi
  Using cached remi-2021.3.2-py3-none-any.whl (518 kB)
Installing collected packages: remi
  Attempting uninstall: remi
    Found existing installation: remi 2020.3.10
    Uninstalling remi-2020.3.10:
      Successfully uninstalled remi-2020.3.10
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pysimpleguiweb 0.39.0 requires remi<=2020.3.10, but you have remi 2021.3.2 which is incompatible.
Successfully installed remi-2021.3.2
(KPS_WEB_venv) username@hostname: ~/Projects/KPS $./KPS_webapp.py 
Traceback (most recent call last):
  File "/home/user/Projects/KPS/./KPS_webapp.py", line 6, in <module>
    import PySimpleGUIWeb as sg
  File "/home/user/.local/lib/python3.9/site-packages/PySimpleGUIWeb/__init__.py", line 2, in <module>
    from .PySimpleGUIWeb import *
  File "/home/user/.local/lib/python3.9/site-packages/PySimpleGUIWeb/PySimpleGUIWeb.py", line 14, in <module>
    import remi
ModuleNotFoundError: No module named 'remi'

I can see that the second command is pointing to my home folder even though I am inside the venv. Am I doing something wrong? Let me know if I need to post more details.

[jason990420]

(KPS_WEB_venv) username@hostname: ~/Projects/KPS $./KPS_webapp.py 

I know nothing about linux, so question here how py file executed ? which python running, maybe command which python to show it, maybe python3 or something else under venv ?

[MattiaFinocchi-bloomon]

@jason990420 I realized my error. I was starting the program using "python3" command instead of "python" in the venv.
In the program I've put "#!/usr/bin/python3", once I've started with the "python" command it worked after using "pip install remi --upgrade"

Thanks for supporting and for the amazing project you are developing!