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kernelspec: ensure path is writable before writing kernel.json. #593

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Feb 18, 2021
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kernelspec: ensure path is writable before writing kernel.json. #593

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kernelspec: ensure path is writable before writing kernel.json.
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@jellelicht
jellelicht committed Feb 18, 2021
commit c9102ddeb55bd4f39d3b6c8499a3f1a8353edec9
7 changes: 7 additions & 0 deletions ipykernel/kernelspec.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
import json
import os
import shutil
import stat
import sys
import tempfile

Expand Down Expand Up @@ -70,6 +71,12 @@ def write_kernel_spec(path=None, overrides=None, extra_arguments=None):

# stage resources
shutil.copytree(RESOURCES, path)

# ensure path is writable
mask = os.stat(path).st_mode
if not mask & stat.S_IWUSR:
os.chmod(path, mask | stat.S_IWUSR)

# write kernel.json
kernel_dict = get_kernel_dict(extra_arguments)

Expand Down