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Actually fix the api curses crash. #8396

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Merged
merged 1 commit into from
Feb 12, 2020
Merged

Actually fix the api curses crash. #8396

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9 changes: 6 additions & 3 deletions mypy/util.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
import subprocess
import sys
import hashlib
import io

from typing import (
TypeVar, List, Tuple, Optional, Dict, Sequence, Iterable, Container, IO, Callable
Expand Down Expand Up @@ -545,11 +546,13 @@ def initialize_unix_colors(self) -> bool:
# setupterm wants a fd to potentially write an "initialization sequence".
# We override sys.stdout for the daemon API so if stdout doesn't have an fd,
# just give it /dev/null.
if hasattr(sys.stdout, 'fileno'):
curses.setupterm()
else:
try:
fd = sys.stdout.fileno()
except io.UnsupportedOperation:
with open("/dev/null", "rb") as f:
curses.setupterm(fd=f.fileno())
else:
curses.setupterm(fd=fd)
except curses.error:
# Most likely terminfo not found.
return False
Expand Down