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Strange parsing errors #1543

Closed
#1591
#1544
Closed
Strange parsing errors#1543
#1591
#1544
Assignees
MikhailArkhipov
Labels
bugSomething isn't working
Milestone
September 2019.2

Description

@haollhao
Hao Lu (haollhao)
opened on Sep 13, 2019

Environment data

  • Language Server version: 0.4.10.0
  • OS and version:Windows 10
  • Python version (& distribution if applicable, e.g. Anaconda): 3.6.4 64-bit

Expected behaviour

Actual behaviour

There are strange parsing errors, occurring on an empty line, and complaining about a non-existent token. Could this be because of some synchronization issue? As shown in the log below, the file formatted by python black is sometimes not the original file.

Also, this behavior does not show up immediately after reload, but after some time it starts to pop up. There is no syntax error in the code as it can be run successfully.

Logs

Output from Python Panel:

User belongs to experiment group 'ShowPlayIcon - runFile'
User belongs to experiment group 'ShowExtensionSurveyPrompt - enabled'
> conda --version
> pyenv root
> python3.7 -c "import sys;print(sys.executable)"
> python3.6 -c "import sys;print(sys.executable)"
> python3 -c "import sys;print(sys.executable)"
> python2 -c "import sys;print(sys.executable)"
> python -c "import sys;print(sys.executable)"
> py -3.7 -c "import sys;print(sys.executable)"
> py -3.6 -c "import sys;print(sys.executable)"
> py -3 -c "import sys;print(sys.executable)"
> py -2 -c "import sys;print(sys.executable)"
> C:\Programs\Python3.6\python.exe -c "import sys;print(sys.executable)"
> conda info --json
> ~\AppData\Local\Microsoft\WindowsApps\python.exe ~\.vscode\extensions\ms-python.python-2019.9.34911\pythonFiles\interpreterInfo.py
> ~\AppData\Local\Microsoft\WindowsApps\python.exe ~\.vscode\extensions\ms-python.python-2019.9.34911\pythonFiles\interpreterInfo.py
> ~\AppData\Local\Microsoft\WindowsApps\python3.exe ~\.vscode\extensions\ms-python.python-2019.9.34911\pythonFiles\interpreterInfo.py
> ~\AppData\Local\Microsoft\WindowsApps\python3.exe ~\.vscode\extensions\ms-python.python-2019.9.34911\pythonFiles\interpreterInfo.py
> ~\AppData\Local\Microsoft\WindowsApps\python.exe ~\.vscode\extensions\ms-python.python-2019.9.34911\pythonFiles\interpreterInfo.py
> ~\AppData\Local\Microsoft\WindowsApps\python.exe ~\.vscode\extensions\ms-python.python-2019.9.34911\pythonFiles\interpreterInfo.py
> ~\AppData\Local\Microsoft\WindowsApps\python3.exe ~\.vscode\extensions\ms-python.python-2019.9.34911\pythonFiles\interpreterInfo.py
> ~\AppData\Local\Microsoft\WindowsApps\python3.exe ~\.vscode\extensions\ms-python.python-2019.9.34911\pythonFiles\interpreterInfo.py
Starting Microsoft Python language server.
> C:\Programs\Python3.6\python.exe -m black -S --diff --quiet <project_root>\1001-1100\1093\sol.py
cwd: <project_root>
> C:\Programs\Python3.6\python.exe -m black -S --diff --quiet <project_root>\1001-1100\1093\sol.py
cwd: <project_root>
> conda info --json
> conda --version
> C:\Programs\Python3.6\python.exe -m black -S --diff --quiet <project_root>\1001-1100\1093\sol.py
cwd: <project_root>
...
> C:\Programs\Python3.6\python.exe -m black -S --diff --quiet <project_root>\1001-1100\1093\sol.py.1155b78ffef3cae68e5d7f36d7c73122.py
...

Output from Python Language Server Panel:

[Info  - 6:20:35 PM] Microsoft Python Language Server version 0.4.10.0
[Info  - 6:20:35 PM] Workspace root: <project_root>
[Info  - 6:20:35 PM] Analysis cache path: C:\Users\<username>\AppData\Local\Microsoft\Python Language Server
[Info  - 6:20:35 PM] GetCurrentSearchPaths C:\Programs\Python3.6\python.exe 
[Info  - 6:20:35 PM] Interpreter search paths:
[Info  - 6:20:35 PM]     c:\programs\python3.6\dlls
[Info  - 6:20:35 PM]     c:\programs\python3.6\lib
[Info  - 6:20:35 PM]     c:\programs\python3.6
[Info  - 6:20:35 PM]     c:\users\<username>\appdata\roaming\python\python36\site-packages
[Info  - 6:20:35 PM]     c:\programs\python3.6\lib\site-packages
[Info  - 6:20:35 PM] User search paths:
[Info  - 6:20:38 PM] Initializing for C:\Programs\Python3.6\python.exe
Watching c:\programs\python3.6
Watching c:\users\<username>\appdata\roaming\python\python36\site-packages
Opening document file:///<project_root>/1001-1100/1093/sol.py
Analysis of sol(User) queued
Analysis version 2 of 1 entries has started.
Analysis of sol (User) on depth 0 completed in 22.763 ms.
Analysis complete: 1 modules in 23.4171 ms.
Analysis version 2 of 1 entries has been completed in 22.9905 ms.
...
Analysis version 693 of 1 entries has started.
Analysis of sol (User) on depth 0 completed in 0.5606 ms.
Analysis complete: 1 modules in 0.7808 ms.
Analysis version 693 of 1 entries has been completed in 0.6874 ms.
Hover in file:///<project_root>/1001-1100/1093/sol.py at (46, 35)
Hover in file:///<project_root>/1001-1100/1093/sol.py at (46, 15)
Hover in file:///<project_root>/1001-1100/1093/sol.py at (48, 21)
Hover in file:///<project_root>/1001-1100/1093/sol.py at (35, 8)

Code Snippet / Additional lnformation

There are multiple issues on line 48, which is an empty line. Also, there is no 'tluserer' token in the file.

image

        for i, freq in enumerate(count):
            if not median_pos:
                break
            if not freq:
                continue

            cnt += freq
            while median_pos and freq >= median_pos[-1]:
                median_pos.pop()
                total += i

        result[3] = total / (2 - (cnt & 1))

        return result

Activity

  1. Mikhail Arkhipov (MikhailArkhipov)
    self-assigned this
    on Sep 13, 2019
  2. Mikhail Arkhipov (MikhailArkhipov)
    added
    bugSomething isn't working
    on Sep 13, 2019
  3. Mikhail Arkhipov (MikhailArkhipov)
    added this to the September 2019.1 milestone on Sep 13, 2019

  4. jakebailey commented on Sep 16, 2019

    @jakebailey
    Jake Bailey (jakebailey)
    on Sep 16, 2019
    Member

    For reference: #1479 (comment)

  5. Mikhail Arkhipov (MikhailArkhipov)
    closed this as completedin #1544on Sep 16, 2019

  6. MikhailArkhipov commented on Sep 16, 2019

    @MikhailArkhipov
    Mikhail Arkhipov (MikhailArkhipov)
    on Sep 16, 2019

    This is going to be in 0.4.12+

  7. haollhao commented on Sep 19, 2019

    @haollhao
    Hao Lu (haollhao)
    on Sep 19, 2019
    Author

    This is going to be in 0.4.12+

    Hi thanks for following up. I am using 0.4.20.0 and unfortunately this problem still exists. Below is a screenshot and a code sample, although I do not think it has anything to do with this specific code.

    image

    class Solution:
    def numRollsToTarget(self, d: int, f: int, target: int) -> int:

        memo = {}

        def helper(n, t):
            if t < n:
                return 0

            if n == 0:
                return 0 if t else 1

            if (n, t) in memo:
                return memo[n, t]

        return 0
  8. Mikhail Arkhipov (MikhailArkhipov)
    reopened this on Sep 25, 2019
  9. Mikhail Arkhipov (MikhailArkhipov)
    modified the milestones: September 2019.1, September 2019.2 on Sep 25, 2019
  10. Mikhail Arkhipov (MikhailArkhipov)
    closed this as completedin #1591on Sep 26, 2019

  11. MikhailArkhipov commented on Oct 1, 2019

    @MikhailArkhipov
    Mikhail Arkhipov (MikhailArkhipov)
    on Oct 1, 2019

    0.4.34+ has additional fixes

  12. Ark-kun commented on Sep 27, 2020

    @Ark-kun
    Alexey Volkov (Ark-kun)
    on Sep 27, 2020

    It's not fixed.
    It has happened to me many times in 2020.

    #2026 (comment)

    Happened again on

    Python: v2020.8.108011
VScode
Version: 1.48.2 (user setup)
Commit: a0479759d6e9ea56afa657e454193f72aef85bd0
Date: 2020-08-25T10:13:11.295Z (1 mo ago)
Electron: 7.3.2
Chrome: 78.0.3904.130
Node.js: 12.8.1
V8: 7.8.279.23-electron.0
OS: Windows_NT x64 10.0.18362

    image

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