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Buffer still goes missing when using python in terminal with Windows Powershell/pwsh6/cmd #3856

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opened 2026-01-30 23:31:41 +00:00 by claunia · 5 comments
claunia commented 2026-01-30 23:31:41 +00:00
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Originally created by @Jarvis73 on GitHub (Sep 13, 2019).

Environment

Windows build number: Microsoft Windows [version 10.0.18362.356]
Windows Terminal version: 0.4.2382.0
Windows Powershell: 
                     PSVersion                      5.1.18362.145
                     PSEdition                      Desktop
                     PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
                     BuildVersion                   10.0.18362.145
                     CLRVersion                     4.0.30319.42000
                     WSManStackVersion              3.0
                     PSRemotingProtocolVersion      2.3
                     SerializationVersion           1.1.0.1
Pwsh 6:
                     PSVersion                      6.2.2
                     PSEdition                      Core
                     GitCommitId                    6.2.2
                     OS                             Microsoft Windows 10.0.18362
                     Platform                       Win32NT
                     PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
                     PSRemotingProtocolVersion      2.3
                     SerializationVersion           1.1.0.1
                     WSManStackVersion              3.0

Steps to reproduce

  1. Open any of the WindowsPowershell/pwsh/cmd in windows terminal
  2. Install python package pyreadline
  3. Input python and enter interactive mode
  4. Press Enter a bunch of times, until current view goes up
  5. Lines at the top got missing and can not scroll up

Expected behavior

All the lines at the beginning should be kept and scrollback/scroll bar should appear

Actual behavior

  • cmd
    cmd

  • pwsh
    pwsh

  • Windows Powershell
    windowspowershell

Note

  • I think it is not the problem mentioned in #2410 and PSReadLine, because I have fix the PSReadLine problem by installing v2.0.0-beta4
    image
    psreadline

  • Besides, build-in Windows Powershell is correct:
    powershell

Originally created by @Jarvis73 on GitHub (Sep 13, 2019). # Environment ```none Windows build number: Microsoft Windows [version 10.0.18362.356] Windows Terminal version: 0.4.2382.0 Windows Powershell: PSVersion 5.1.18362.145 PSEdition Desktop PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...} BuildVersion 10.0.18362.145 CLRVersion 4.0.30319.42000 WSManStackVersion 3.0 PSRemotingProtocolVersion 2.3 SerializationVersion 1.1.0.1 Pwsh 6: PSVersion 6.2.2 PSEdition Core GitCommitId 6.2.2 OS Microsoft Windows 10.0.18362 Platform Win32NT PSCompatibleVersions {1.0, 2.0, 3.0, 4.0…} PSRemotingProtocolVersion 2.3 SerializationVersion 1.1.0.1 WSManStackVersion 3.0 ``` # Steps to reproduce 1. Open any of the WindowsPowershell/pwsh/cmd in windows terminal 2. Install python package `pyreadline` 3. Input `python` and enter interactive mode 4. Press `Enter` a bunch of times, until current view goes up 5. Lines at the top got missing and can not scroll up # Expected behavior All the lines at the beginning should be kept and scrollback/scroll bar should appear # Actual behavior * cmd ![cmd](https://user-images.githubusercontent.com/26033896/64836052-0356ec00-d61b-11e9-8c67-e4d9a5774315.gif) * pwsh ![pwsh](https://user-images.githubusercontent.com/26033896/64836074-18337f80-d61b-11e9-9424-17a45ccd02c3.gif) * Windows Powershell ![windowspowershell](https://user-images.githubusercontent.com/26033896/64836112-37caa800-d61b-11e9-82e4-c786e19b8331.gif) # Note * I think it is not the problem mentioned in #2410 and [PSReadLine](https://github.com/PowerShell/PSReadLine/issues/724), because I have fix the PSReadLine problem by installing v2.0.0-beta4 ![image](https://user-images.githubusercontent.com/26033896/64835291-0d2b2000-d618-11e9-98fb-4d5a51b500ac.png) ![psreadline](https://user-images.githubusercontent.com/26033896/64835923-888dd100-d61a-11e9-9de1-901d476edf9a.gif) * Besides, build-in Windows Powershell is correct: ![powershell](https://user-images.githubusercontent.com/26033896/64835730-af97d300-d619-11e9-9d8a-feacc97d9bac.gif)
claunia commented 2026-01-30 23:31:42 +00:00
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@DHowett-MSFT commented on GitHub (Sep 16, 2019):

Nobody over here can repro this, but we're keeping it open because clearly it's an issue.

@DHowett-MSFT commented on GitHub (Sep 16, 2019): Nobody over here can repro this, but we're keeping it open because clearly it's an issue.
claunia commented 2026-01-30 23:31:42 +00:00
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@Jarvis73 commented on GitHub (Sep 17, 2019):

I found python package pyreadline causes the problem. Temporarily I can skip this bug by uninstalling the package. But I think it is still necessary to fix it.

@Jarvis73 commented on GitHub (Sep 17, 2019): I found python package `pyreadline` causes the problem. Temporarily I can skip this bug by uninstalling the package. But I think it is still necessary to fix it.
claunia commented 2026-01-30 23:31:43 +00:00
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@DHowett-MSFT commented on GitHub (May 2, 2020):

Is this still happening? With PWSH 7 😄

@DHowett-MSFT commented on GitHub (May 2, 2020): Is this still happening? With PWSH 7 :smile:
claunia commented 2026-01-30 23:31:43 +00:00
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@Jarvis73 commented on GitHub (May 3, 2020):

It seems that the problem has gone.

@Jarvis73 commented on GitHub (May 3, 2020): It seems that the problem has gone.
claunia commented 2026-01-30 23:31:44 +00:00
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@DHowett-MSFT commented on GitHub (May 3, 2020):

Thank you!

@DHowett-MSFT commented on GitHub (May 3, 2020): Thank you!
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Reference: starred/terminal#3856
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