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Posted to issues@arrow.apache.org by "Wes McKinney (Jira)" <ji...@apache.org> on 2019/09/30 17:03:00 UTC
[jira] [Updated] (ARROW-6740) [Python] Unable to delete closed
MemoryMappedFile on Windows
[ https://issues.apache.org/jira/browse/ARROW-6740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wes McKinney updated ARROW-6740:
--------------------------------
Summary: [Python] Unable to delete closed MemoryMappedFile on Windows (was: Unable to delete closed MemoryMappedFile on Windows)
> [Python] Unable to delete closed MemoryMappedFile on Windows
> ------------------------------------------------------------
>
> Key: ARROW-6740
> URL: https://issues.apache.org/jira/browse/ARROW-6740
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Affects Versions: 0.14.1
> Environment: Windows 10
> Reporter: Sergey Mozharov
> Assignee: Antoine Pitrou
> Priority: Major
>
> {code:java}
> import os
> import pyarrow as pa
> # Create a file and memory-map it
> file_name = 'path-to-a-new-file'
> mmap = pa.create_memory_map(file_name, 100)
> # or open an existing file
> # file_name = 'path-to-an-existing-file'
> # mmap = pa.memory_map(file_name)
> # close it
> mmap.close()
> mmap.closed # True
> # try to delete it (can't delete until the python interpreter is killed)
> os.remove(file_name) # PermissionError
> # Note: opening an existing file as `pa.input_stream` works as expected{code}
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