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Fix for Issue #268: Windows-specific failure due to file locking #277

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Fix for Issue #268: Windows-specific failure due to file locking #277

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7 changes: 4 additions & 3 deletions src/anytree/exporter/dotexporter.py
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Original file line number Diff line number Diff line change
Expand Up @@ -292,9 +292,10 @@ def to_picture(self, filename):
dotfilename = dotfile.name
for line in self:
dotfile.write((f"{line}\n").encode())
dotfile.flush()
cmd = ["dot", dotfilename, "-T", fileformat, "-o", filename]
check_call(cmd)

# Call dot outside with block so dotfile is closed to avoid permission issues
cmd = ["dot", dotfilename, "-T", fileformat, "-o", filename]
check_call(cmd)
try:
remove(dotfilename)
# pylint: disable=broad-exception-caught
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