Python Error

2020-11-23 Thread Mayukh Chakraborty via Python-list
Hi,
I had uninstalled and installed Python in Windows 10 but I am getting the error 
below. Can you please help ?
C:\Users\mchak>pythonFatal Python error: init_sys_streams: can't initialize sys 
standard streamsPython runtime state: core initializedAttributeError: module 
'io' has no attribute 'OpenWrapper'
Current thread 0x9d44 (most recent call first):
Regards,Mayukh
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Re: Python Error

2020-11-23 Thread Mayukh Chakraborty via Python-list
 1. The command 'py' doesn't work. It gives me the error below :
C:\Users\mchak>pyFatal Python error: init_sys_streams: can't initialize sys 
standard streamsPython runtime state: core initializedAttributeError: module 
'io' has no attribute 'open'
Current thread 0x8290 (most recent call first):

2. If I use py -0, I get two installed versions. However, if I try to uninstall 
from Control Panel, I see only 3.9 version
C:\Users\mchak>py -0Installed Pythons found by py Launcher for Windows -3.9-64 
* -3.8-64
3. I tried to uninstall v3.9 and reinstall but it didn't solve the issue.
Regards,Mayukh
On Monday, November 23, 2020, 06:17:00 PM GMT, Barry Scott 
 wrote:  
 
 

> On 23 Nov 2020, at 14:10, Mayukh Chakraborty via Python-list 
>  wrote:
> 
> Hi,
> I had uninstalled and installed Python in Windows 10 but I am getting the 
> error below. Can you please help ?
> C:\Users\mchak>pythonFatal Python error: init_sys_streams: can't initialize 
> sys standard streamsPython runtime state: core initializedAttributeError: 
> module 'io' has no attribute 'OpenWrapper'
> Current thread 0x9d44 (most recent call first):
> Regards,Mayukh

Which version of python are you installing and where did you download it from?
Do you have more than one version of python installed?


Does the command:

  py

work?

If you have python from python.org installed you should be able to list all the 
version you have installed
with the command:

  py -0

That is zero not oh.

Barry




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Re: Python Error

2020-11-23 Thread Mayukh Chakraborty via Python-list
 Hi Terry,
1. The command py doesn't work. It gives me the error below :
C:\Users\mchak>pyFatal Python error: init_sys_streams: can't initialize sys 
standard streamsPython runtime state: core initializedAttributeError: module 
'io' has no attribute 'open'
Current thread 0x8290 (most recent call first):

2. If I use py -0, I get two installed versions. However, if I try to uninstall 
from Control Panel, I see only 3.9 version
C:\Users\mchak>py -0Installed Pythons found by py Launcher for Windows -3.9-64 
* -3.8-64
3. I tried to uninstall v3.9 and reinstall but it didn't solve the issue.
Regards,MayukhOn Monday, November 23, 2020, 06:34:43 PM GMT, Terry Reedy 
 wrote:  
 
 On 11/23/2020 9:10 AM, Mayukh Chakraborty via Python-list wrote:
> Hi,
> I had uninstalled and installed Python in Windows 10 but I am getting the 
> error below. Can you please help ?
> C:\Users\mchak>python
Fatal Python error: init_sys_streams: can't initialize sys standard streams
Python runtime state: core initialized
AttributeError: module 'io' has no attribute 'OpenWrapper'
Current thread 0x9d44 (most recent call first):

It is true that io has no OpenWrapper class.  The question is What is 
trying to use that?  What installer are you using?  I would 
(re)download the one from python.org.
-- 
Terry Jan Reedy

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Re: Python Error

2020-11-23 Thread Mayukh Chakraborty via Python-list
 Hi,
I have solved the issue by updating the Environment variables, now I am able to 
launch 'py' from the command prompt. However, I can't launch 'python' from 
command prompt. I am also encountering an issue when I try to execute the 
'python' command from command prompt.
I had reinstalled the python packages (numpy, pandas, scipy etc) but I can't 
find a solution for this error.
---
C:\Users\mchak\Documents\Python>py ES.pyTraceback (most recent call last):  
File 
"C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\numpy\core\__init__.py",
 line 22, in     from . import multiarray  File 
"C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\numpy\core\multiarray.py",
 line 12, in     from . import overrides  File 
"C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\numpy\core\overrides.py",
 line 7, in     from numpy.core._multiarray_umath import 
(ModuleNotFoundError: No module named 'numpy.core._multiarray_umath'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):  File 
"C:\Users\mchak\Documents\Python\ES.py", line 1, in     import scipy as 
sp  File 
"C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\scipy\__init__.py",
 line 61, in     from numpy import show_config as show_numpy_config  
File 
"C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\numpy\__init__.py",
 line 140, in     from . import core  File 
"C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\numpy\core\__init__.py",
 line 48, in     raise ImportError(msg)ImportError:
IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!
Importing the numpy C-extensions failed. This error can happen formany reasons, 
often due to issues with your setup or how NumPy wasinstalled.
We have compiled some common reasons and troubleshooting tips at:
    https://numpy.org/devdocs/user/troubleshooting-importerror.html
Please note and check the following:
  * The Python version is: Python3.9 from 
"C:\Users\mchak\AppData\Local\Programs\Python\Python39\python.exe"  * The NumPy 
version is: "1.19.4"
and make sure that they are the versions you expect.Please carefully study the 
documentation linked above for further help.
Original error was: No module named 'numpy.core._multiarray_umath'

Regards,MayukhOn Monday, November 23, 2020, 08:17:06 PM GMT, Mayukh 
Chakraborty via Python-list  wrote:  
 
  Hi Terry,
1. The command py doesn't work. It gives me the error below :
C:\Users\mchak>pyFatal Python error: init_sys_streams: can't initialize sys 
standard streamsPython runtime state: core initializedAttributeError: module 
'io' has no attribute 'open'
Current thread 0x8290 (most recent call first):

2. If I use py -0, I get two installed versions. However, if I try to uninstall 
from Control Panel, I see only 3.9 version
C:\Users\mchak>py -0Installed Pythons found by py Launcher for Windows -3.9-64 
* -3.8-64
3. I tried to uninstall v3.9 and reinstall but it didn't solve the issue.
Regards,Mayukh    On Monday, November 23, 2020, 06:34:43 PM GMT, Terry Reedy 
 wrote:  
 
 On 11/23/2020 9:10 AM, Mayukh Chakraborty via Python-list wrote:
> Hi,
> I had uninstalled and installed Python in Windows 10 but I am getting the 
> error below. Can you please help ?
> C:\Users\mchak>python
Fatal Python error: init_sys_streams: can't initialize sys standard streams
Python runtime state: core initialized
AttributeError: module 'io' has no attribute 'OpenWrapper'
Current thread 0x9d44 (most recent call first):

It is true that io has no OpenWrapper class.  The question is What is 
trying to use that?  What installer are you using?  I would 
(re)download the one from python.org.
-- 
Terry Jan Reedy

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Re: Python Error

2020-11-24 Thread Mayukh Chakraborty via Python-list
 Thanks - I am able to launch 'py' from the command prompt and it gives me the 
python versions installed in my machine from python.org website.
However, when I am trying to execute a python program from command prompt, I am 
getting the error below. I had reinstalled python packages (numpy, pandas) but 
it didn't resolve the issue. Any help would be appreciated.
Original error was: No module named 'numpy.core._multiarray_umath'

---
C:\Users\mchak\Documents\Python>py ES.pyTraceback (most recent call last):  
File 
"C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\numpy\core\__init__.py",
 line 22, in     from . import multiarray  File 
"C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\numpy\core\multiarray.py",
 line 12, in     from . import overrides  File 
"C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\numpy\core\overrides.py",
 line 7, in     from numpy.core._multiarray_umath import 
(ModuleNotFoundError: No module named 'numpy.core._multiarray_umath'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):  File 
"C:\Users\mchak\Documents\Python\ES.py", line 1, in     import scipy as 
sp  File 
"C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\scipy\__init__.py",
 line 61, in     from numpy import show_config as show_numpy_config  
File 
"C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\numpy\__init__.py",
 line 140, in     from . import core  File 
"C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\numpy\core\__init__.py",
 line 48, in     raise ImportError(msg)ImportError:
IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!
Importing the numpy C-extensions failed. This error can happen formany reasons, 
often due to issues with your setup or how NumPy wasinstalled.
We have compiled some common reasons and troubleshooting tips at:
    https://numpy.org/devdocs/user/troubleshooting-importerror.html
Please note and check the following:
  * The Python version is: Python3.9 from 
"C:\Users\mchak\AppData\Local\Programs\Python\Python39\python.exe"  * The NumPy 
version is: "1.19.4"
and make sure that they are the versions you expect.Please carefully study the 
documentation linked above for further help.
Original error was: No module named 'numpy.core._multiarray_umath'

On Tuesday, November 24, 2020, 07:13:04 AM GMT, Gisle Vanem 
 wrote:  
 
 Barry Scott wrote:

> If you have python from python.org installed you should be able to list all 
> the version you have installed
> with the command:
> 
>    py -0
When was that '-0' feature added?
I have Python 3.6 from Python.org and here a
'py.exe -0' gives:
  Requested Python version (0) not installed

But using 'py.exe -0' from Python 3.9 correctly
gives:
  -3.6-32 *
  -2.7-32

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Re: Python Error

2020-11-24 Thread Mayukh Chakraborty via Python-list
 Thanks.
I updated the path and was able to launch python.exe for v3.8. I got rid of the 
other errors but now facing an error with 'pandas' although  it is installed ok 
and the path correctly updated.
C:\Users\mchak>pythonPython 3.8.6 (tags/v3.8.6:db45529, Sep 23 2020, 15:52:53) 
[MSC v.1927 64 bit (AMD64)] on win32Type "help", "copyright", "credits" or 
"license" for more information.>>> import pandas as pdTraceback (most recent 
call last):  File "", line 1, in   File 
"C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\pandas\__init__.py",
 line 22, in     from pandas.compat.numpy import (ModuleNotFoundError: 
No module named 'pandas.compat.numpy'>>>
- Mayukh


On Tuesday, November 24, 2020, 09:27:00 PM GMT, Barry 
 wrote:  
 
 Two observations.

Python.exe is not on your PATH. But that does not matter as you can use the py 
command instead

And nymph may not be available for python 3.9 yet. Check on pypi to see if 
there is a build for 3.9.

Maybe use 3.8 for the time being.
Barry

> On 24 Nov 2020, at 11:18, Mayukh Chakraborty via Python-list 
>  wrote:
> 
>  Thanks - I am able to launch 'py' from the command prompt and it gives me 
> the python versions installed in my machine from python.org website.
> However, when I am trying to execute a python program from command prompt, I 
> am getting the error below. I had reinstalled python packages (numpy, pandas) 
> but it didn't resolve the issue. Any help would be appreciated.
> Original error was: No module named 'numpy.core._multiarray_umath'
> 
> ---
> C:\Users\mchak\Documents\Python>py ES.pyTraceback (most recent call last):  
> File 
> "C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\numpy\core\__init__.py",
>  line 22, in     from . import multiarray  File 
> "C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\numpy\core\multiarray.py",
>  line 12, in     from . import overrides  File 
> "C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\numpy\core\overrides.py",
>  line 7, in     from numpy.core._multiarray_umath import 
> (ModuleNotFoundError: No module named 'numpy.core._multiarray_umath'
> During handling of the above exception, another exception occurred:
> Traceback (most recent call last):  File 
> "C:\Users\mchak\Documents\Python\ES.py", line 1, in     import scipy 
> as sp  File 
> "C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\scipy\__init__.py",
>  line 61, in     from numpy import show_config as show_numpy_config  
> File 
> "C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\numpy\__init__.py",
>  line 140, in     from . import core  File 
> "C:\Users\mchak\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\numpy\core\__init__.py",
>  line 48, in     raise ImportError(msg)ImportError:
> IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!
> Importing the numpy C-extensions failed. This error can happen formany 
> reasons, often due to issues with your setup or how NumPy wasinstalled.
> We have compiled some common reasons and troubleshooting tips at:
>    https://numpy.org/devdocs/user/troubleshooting-importerror.html
> Please note and check the following:
>  * The Python version is: Python3.9 from 
>"C:\Users\mchak\AppData\Local\Programs\Python\Python39\python.exe"  * The 
>NumPy version is: "1.19.4"
> and make sure that they are the versions you expect.Please carefully study 
> the documentation linked above for further help.
> Original error was: No module named 'numpy.core._multiarray_umath'
> 
>>    On Tuesday, November 24, 2020, 07:13:04 AM GMT, Gisle Vanem 
>> wrote:  
>> 
>> Barry Scott wrote:
>> 
>> If you have python from python.org installed you should be able to list all 
>> the version you have installed
>> with the command:
>> 
>>    py -0
> When was that '-0' feature added?
> I have Python 3.6 from Python.org and here a
> 'py.exe -0' gives:
>  Requested Python version (0) not installed
> 
> But using 'py.exe -0' from Python 3.9 correctly
> gives:
>  -3.6-32 *
>  -2.7-32
> 
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> --gv
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