Only on my Windows 10, on my Windows 11 works perfectly. I uninstalled and reinstalled python, it did not help, I tried everything I found online, Stackoverflow, python.org, did not help. Not just this module, others too. They are installed where they
are supposed to be and they produce the name not found error. Some modules work. The Path is set in the System Environment Variables list.

(env) C:\Users\zszen>req3.py
Traceback (most recent call last):
File "C:\Users\zszen\env\Scripts\req3.py", line 2, in <module>
import requests_html
ModuleNotFoundError: No module named 'requests_html'

(env) C:\Users\zszen>pip3 install requests_html
Requirement already satisfied: requests_html in c:\users\zszen\env\lib\site-packages (0.10.0)
Requirement already satisfied: requests in c:\users\zszen\env\lib\site-packages (from requests_html) (2.27.1)
Requirement already satisfied: bs4 in c:\users\zszen\env\lib\site-packages (from requests_html) (0.0.1)
Requirement already satisfied: fake-useragent in c:\users\zszen\env\lib\site-packages (from requests_html) (0.1.11)
Requirement already satisfied: pyppeteer>=0.0.14 in c:\users\zszen\env\lib\site-packages (from requests_html) (1.0.2)
Requirement already satisfied: pyquery in c:\users\zszen\env\lib\site-packages (from requests_html) (1.4.3)
Requirement already satisfied: parse in c:\users\zszen\env\lib\site-packages (from requests_html) (1.19.0)
Requirement already satisfied: w3lib in c:\users\zszen\env\lib\site-packages (from requests_html) (1.22.0)
Requirement already satisfied: appdirs<2.0.0,>=1.4.3 in c:\users\zszen\env\lib\site-packages (from pyppeteer>=0.0.14->requests_html) (1.4.4)
Requirement already satisfied: websockets<11.0,>=10.0 in c:\users\zszen\env\lib\site-packages (from pyppeteer>=0.0.14->requests_html) (10.3)
Requirement already satisfied: urllib3<2.0.0,>=1.25.8 in c:\users\zszen\env\lib\site-packages (from pyppeteer>=0.0.14->requests_html) (1.26.9)
Requirement already satisfied: tqdm<5.0.0,>=4.42.1 in c:\users\zszen\env\lib\site-packages (from pyppeteer>=0.0.14->requests_html) (4.64.0)
Requirement already satisfied: importlib-metadata>=1.4 in c:\users\zszen\env\lib\site-packages (from pyppeteer>=0.0.14->requests_html) (4.11.4)
Requirement already satisfied: pyee<9.0.0,>=8.1.0 in c:\users\zszen\env\lib\site-packages (from pyppeteer>=0.0.14->requests_html) (8.2.2)
Requirement already satisfied: certifi>=2021 in c:\users\zszen\env\lib\site-packages (from pyppeteer>=0.0.14->requests_html) (2022.5.18.1)
Requirement already satisfied: beautifulsoup4 in c:\users\zszen\env\lib\site-packages (from bs4->requests_html) (4.11.1)
Requirement already satisfied: cssselect>0.7.9 in c:\users\zszen\env\lib\site-packages (from pyquery->requests_html) (1.1.0)
Requirement already satisfied: lxml>=2.1 in c:\users\zszen\env\lib\site-packages (from pyquery->requests_html) (4.9.0)
Requirement already satisfied: charset-normalizer~=2.0.0 in c:\users\zszen\env\lib\site-packages (from requests->requests_html) (2.0.12)
Requirement already satisfied: idna<4,>=2.5 in c:\users\zszen\env\lib\site-packages (from requests->requests_html) (3.3)
Requirement already satisfied: six>=1.4.1 in c:\users\zszen\env\lib\site-packages (from w3lib->requests_html) (1.16.0)
Requirement already satisfied: zipp>=0.5 in c:\users\zszen\env\lib\site-packages (from importlib-metadata>=1.4->pyppeteer>=0.0.14->requests_html) (3.8.0)
Requirement already satisfied: colorama in c:\users\zszen\env\lib\site-packages (from tqdm<5.0.0,>=4.42.1->pyppeteer>=0.0.14->requests_html) (0.4.4)
Requirement already satisfied: soupsieve>1.2 in c:\users\zszen\env\lib\site-packages (from beautifulsoup4->bs4->requests_html) (2.3.2.post1)

(env) C:\Users\zszen>

Kind regards,

Zoltan

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On Thu, 16 Jun 2022 at 05:00, Zoltan Szenderak <z.szenderak@hotmail.com> wrote:

Only on my Windows 10, on my Windows 11 works perfectly. I uninstalled and reinstalled python, it did not help, I tried everything I found online, Stackoverflow, python.org, did not help. Not just this module, others too. They are installed where they

are supposed to be and they produce the name not found error. Some modules work. The Path is set in the System Environment Variables list.

(env) C:\Users\zszen>req3.py
Traceback (most recent call last):
File "C:\Users\zszen\env\Scripts\req3.py", line 2, in <module>
import requests_html
ModuleNotFoundError: No module named 'requests_html'

(env) C:\Users\zszen>pip3 install requests_html
Requirement already satisfied: requests_html in c:\users\zszen\env\lib\site-packages (0.10.0)
Requirement already satisfied: requests in c:\users\zszen\env\lib\site-packages (from requests_html) (2.27.1)
Requirement already satisfied: bs4 in c:\users\zszen\env\lib\site-packages (from requests_html) (0.0.1)
Requirement already satisfied: fake-useragent in c:\users\zszen\env\lib\site-packages (from requests_html) (0.1.11)
Requirement already satisfied: pyppeteer>=0.0.14 in c:\users\zszen\env\lib\site-packages (from requests_html) (1.0.2)
Requirement already satisfied: pyquery in c:\users\zszen\env\lib\site-packages (from requests_html) (1.4.3)
Requirement already satisfied: parse in c:\users\zszen\env\lib\site-packages (from requests_html) (1.19.0)
Requirement already satisfied: w3lib in c:\users\zszen\env\lib\site-packages (from requests_html) (1.22.0)
Requirement already satisfied: appdirs<2.0.0,>=1.4.3 in c:\users\zszen\env\lib\site-packages (from pyppeteer>=0.0.14->requests_html) (1.4.4)
Requirement already satisfied: websockets<11.0,>=10.0 in c:\users\zszen\env\lib\site-packages (from pyppeteer>=0.0.14->requests_html) (10.3)
Requirement already satisfied: urllib3<2.0.0,>=1.25.8 in c:\users\zszen\env\lib\site-packages (from pyppeteer>=0.0.14->requests_html) (1.26.9)
Requirement already satisfied: tqdm<5.0.0,>=4.42.1 in c:\users\zszen\env\lib\site-packages (from pyppeteer>=0.0.14->requests_html) (4.64.0)
Requirement already satisfied: importlib-metadata>=1.4 in c:\users\zszen\env\lib\site-packages (from pyppeteer>=0.0.14->requests_html) (4.11.4)
Requirement already satisfied: pyee<9.0.0,>=8.1.0 in c:\users\zszen\env\lib\site-packages (from pyppeteer>=0.0.14->requests_html) (8.2.2)
Requirement already satisfied: certifi>=2021 in c:\users\zszen\env\lib\site-packages (from pyppeteer>=0.0.14->requests_html) (2022.5.18.1)
Requirement already satisfied: beautifulsoup4 in c:\users\zszen\env\lib\site-packages (from bs4->requests_html) (4.11.1)
Requirement already satisfied: cssselect>0.7.9 in c:\users\zszen\env\lib\site-packages (from pyquery->requests_html) (1.1.0)
Requirement already satisfied: lxml>=2.1 in c:\users\zszen\env\lib\site-packages (from pyquery->requests_html) (4.9.0)
Requirement already satisfied: charset-normalizer~=2.0.0 in c:\users\zszen\env\lib\site-packages (from requests->requests_html) (2.0.12)
Requirement already satisfied: idna<4,>=2.5 in c:\users\zszen\env\lib\site-packages (from requests->requests_html) (3.3)
Requirement already satisfied: six>=1.4.1 in c:\users\zszen\env\lib\site-packages (from w3lib->requests_html) (1.16.0)
Requirement already satisfied: zipp>=0.5 in c:\users\zszen\env\lib\site-packages (from importlib-metadata>=1.4->pyppeteer>=0.0.14->requests_html) (3.8.0)
Requirement already satisfied: colorama in c:\users\zszen\env\lib\site-packages (from tqdm<5.0.0,>=4.42.1->pyppeteer>=0.0.14->requests_html) (0.4.4)
Requirement already satisfied: soupsieve>1.2 in c:\users\zszen\env\lib\site-packages (from beautifulsoup4->bs4->requests_html) (2.3.2.post1)

(env) C:\Users\zszen>

What does "pip3 --version" tell you, and what happens if you print out sys.version at the top of your script? Also possibly sys.executable,
in case your script isn't running from inside the venv that it looks
like it ought to be working in.

ChrisA

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Zoltan Szenderak <z.szenderak@hotmail.com> writes:

ModuleNotFoundError:

You installed a module using pip, but Python can't find it.

1st idea

Check out which versions are installed:

py -0

. Make sure, you use the same version of Python and pip, for
example, to use version 3.7:

py -3.7 -m pip install

(possibly append " --user " and then append the name of the
module to install for 3.7 to this line),

then, to start the program,

py -3.7

(append the path to your Python source file the this line).

This would mean that you would use Python 3.7 both for pip
/and/ for your application.

2nd idea

Add this to the start of your script:

import sys
print( sys.path )
sys.exit( 0 )

. Now make sure that the module you need is in one of those
paths shown.

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Re: https://mail.python.org/pipermail/python-list/2022-June/906698.html


How do I reply to: Chris Angelico rosuav at gmail.com so it is listed on the Python list?
Chris Angelico rosuav at gmail.com<mailto:python-list%40python.org?Subject=Re%3A%20ModuleNotFoundError&In-Reply-To=%3CCAPTjJmqaTzdKNNZo_tjZmpO1j3B9r7%2BCggYEJfa1v-VAcnYrfg%40mail.gmail.com%3E>
Wed Jun 15 15:14:49 EDT 2022


What does "pip3 --version" tell you, and what happens if you print out

sys.version at the top of your script? Also possibly sys.executable,

in case your script isn't running from inside the venv that it looks

like it ought to be working in.

My reply:
Pip version
pip 22.1.2 from C:\Users\zszen\ENV\lib\site-packages\pip (python 3.10)

print(sys.version_info) and executable:
Unable to initialize device PRN


Kind regards,

Zoltan

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On 2022-06-17 at 08:03:28 +0000,
Zoltan Szenderak <z.szenderak@hotmail.com> wrote:

How do I reply to: Chris Angelico rosuav at gmail.com so it is listed
on the Python list?

Please don't. Please continue replying to python-list@python.org; that
way, other people can help you, and future programmers can find their
issues in the public archives. ChrisA is a regular on this list, and
will see your replies on it.

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On 6/17/22, Zoltan Szenderak <z.szenderak@hotmail.com> wrote:

print(sys.version_info) and executable:
Unable to initialize device PRN

That's the command-line "print" program. You need to first start the
Python shell via python.exe. The prompt should change to ">>> ". Then
run print(sys.version) and print(sys.executable).

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z.szenderak@hotmail.com writes:

print(sys.version)

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'sys' is not defined

Entering "print" on the command line and not knowing how to
cope with this "sys" problem, clearly shows that you still
need to learn Python from the start, i.e., need to learn the
basics before you can try to install extension modules.

In basketball, first you must learn to dribble and pass,
before you can begin to shoot.

With certain reservations, textbooks that can be considered are:

Introduction to Programming Using Python - Y Daniel Liang (2013),
How to Think Like a Computer Scientist - Peter Wentworth (2012-08-12),
The Coder's Apprentice - Pieter Spronck (2016-09-21),
Python Programming - John Zelle (2009), and
Object-Oriented Programming in Python Documentation - a PDF file.

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sorry, I may have misused the term "namespace." I'm not sure what the
proper word is for the names currently loaded into the global scope.

On Fri, Jun 17, 2022 at 8:26 AM inhahe <inhahe@gmail.com> wrote:

sys is a built-in module, but it's not in the namespace unless you import
it first.
before your print statement, enter "import sys"

On Fri, Jun 17, 2022 at 8:23 AM <z.szenderak@hotmail.com> wrote:

Thank you for your email.

C:\Users\zszen>python.exe
Python 3.10.5 (tags/v3.10.5:f377153, Jun 6 2022, 16:14:13) [MSC v.1929
64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.

print(sys.version)

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'sys' is not defined

print(sys.executable)

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'sys' is not defined

On Fri, Jun 17, 2022, at 12:35 PM, Eryk Sun wrote:

On 6/17/22, Zoltan Szenderak <z.szenderak@hotmail.com> wrote:

print(sys.version_info) and executable:
Unable to initialize device PRN

That's the command-line "print" program. You need to first start the
Python shell via python.exe. The prompt should change to ">>> ". Then
run print(sys.version) and print(sys.executable).

--
https://mail.python.org/mailman/listinfo/python-list

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sys is a built-in module, but it's not in the namespace unless you import
it first.
before your print statement, enter "import sys"

On Fri, Jun 17, 2022 at 8:23 AM <z.szenderak@hotmail.com> wrote:

Thank you for your email.

C:\Users\zszen>python.exe
Python 3.10.5 (tags/v3.10.5:f377153, Jun 6 2022, 16:14:13) [MSC v.1929 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.

print(sys.version)

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'sys' is not defined

print(sys.executable)

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'sys' is not defined

On Fri, Jun 17, 2022, at 12:35 PM, Eryk Sun wrote:

On 6/17/22, Zoltan Szenderak <z.szenderak@hotmail.com> wrote:

print(sys.version_info) and executable:
Unable to initialize device PRN

That's the command-line "print" program. You need to first start the
Python shell via python.exe. The prompt should change to ">>> ". Then
run print(sys.version) and print(sys.executable).

--
https://mail.python.org/mailman/listinfo/python-list

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Thank you for your email.

C:\Users\zszen>python.exe
Python 3.10.5 (tags/v3.10.5:f377153, Jun 6 2022, 16:14:13) [MSC v.1929 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.

print(sys.version)

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'sys' is not defined

print(sys.executable)

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'sys' is not defined

On Fri, Jun 17, 2022, at 12:35 PM, Eryk Sun wrote:

On 6/17/22, Zoltan Szenderak <z.szenderak@hotmail.com> wrote:

print(sys.version_info) and executable:
Unable to initialize device PRN

That's the command-line "print" program. You need to first start the
Python shell via python.exe. The prompt should change to ">>> ". Then
run print(sys.version) and print(sys.executable).

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inhahe <inhahe@gmail.com> writes:

sorry, I may have misused the term "namespace." I'm not sure what the
proper word is for the names currently loaded into the global scope.

"The global namespace (of the module)" would be fine for
the (dictionary that holds) the global variables. Or just,
"the (module )globals".

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On Fri, Jun 17, 2022 at 8:31 AM inhahe <inhahe@gmail.com> wrote:

sorry, I may have misused the term "namespace." I'm not sure what the
proper word is for the names currently loaded into the global scope.

On Fri, Jun 17, 2022 at 8:26 AM inhahe <inhahe@gmail.com> wrote:

sys is a built-in module, but it's not in the namespace unless you import it first.
before your print statement, enter "import sys"

On Fri, Jun 17, 2022 at 8:23 AM <z.szenderak@hotmail.com> wrote:

Thank you for your email.

C:\Users\zszen>python.exe
Python 3.10.5 (tags/v3.10.5:f377153, Jun 6 2022, 16:14:13) [MSC v.1929
64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.

print(sys.version)

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'sys' is not defined

print(sys.executable)

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'sys' is not defined

On Fri, Jun 17, 2022, at 12:35 PM, Eryk Sun wrote:

On 6/17/22, Zoltan Szenderak <z.szenderak@hotmail.com> wrote:

print(sys.version_info) and executable:
Unable to initialize device PRN

That's the command-line "print" program. You need to first start the
Python shell via python.exe. The prompt should change to ">>> ". Then
run print(sys.version) and print(sys.executable).

--
https://mail.python.org/mailman/listinfo/python-list

--
https://mail.python.org/mailman/listinfo/python-list

sys is a module that is part of 'batteries included' in python. Since
it is not part of the language per se, you need to import it


--
Joel Goldstick

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