mirror of
https://github.com/astral-sh/ruff.git
synced 2025-09-29 13:25:17 +00:00
266 lines
5.5 KiB
Python
266 lines
5.5 KiB
Python
import contextlib
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import pathlib
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import pathlib as pl
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from pathlib import Path
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from pathlib import Path as P
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# SIM115
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f = open("foo.txt")
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f = Path("foo.txt").open()
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f = pathlib.Path("foo.txt").open()
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f = pl.Path("foo.txt").open()
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f = P("foo.txt").open()
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data = f.read()
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f.close()
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# OK
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with open("foo.txt") as f:
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data = f.read()
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# OK
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with contextlib.ExitStack() as exit_stack:
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f = exit_stack.enter_context(open("filename"))
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# OK
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with contextlib.ExitStack() as stack:
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files = [stack.enter_context(open(fname)) for fname in filenames]
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close_files = stack.pop_all().close
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# OK
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with contextlib.AsyncExitStack() as exit_stack:
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f = await exit_stack.enter_async_context(open("filename"))
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# OK (false negative)
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with contextlib.ExitStack():
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f = exit_stack.enter_context(open("filename"))
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# SIM115
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with contextlib.ExitStack():
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f = open("filename")
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# OK
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with contextlib.ExitStack() as exit_stack:
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exit_stack_ = exit_stack
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f = exit_stack_.enter_context(open("filename"))
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# OK (quick one-liner to clear file contents)
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open("filename", "w").close()
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pathlib.Path("filename").open("w").close()
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# OK (custom context manager)
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class MyFile:
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def __init__(self, filename: str):
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self.filename = filename
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def __enter__(self):
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self.file = open(self.filename)
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def __exit__(self, exc_type, exc_val, exc_tb):
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self.file.close()
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import tempfile
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import tarfile
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from tarfile import TarFile
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import zipfile
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import io
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import codecs
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import bz2
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import gzip
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import dbm
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import dbm.gnu
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import dbm.ndbm
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import dbm.dumb
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import lzma
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import shelve
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import tokenize
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import wave
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import fileinput
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f = tempfile.NamedTemporaryFile()
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f = tempfile.TemporaryFile()
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f = tempfile.SpooledTemporaryFile()
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f = tarfile.open("foo.tar")
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f = TarFile("foo.tar").open()
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f = tarfile.TarFile("foo.tar").open()
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f = tarfile.TarFile().open()
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f = zipfile.ZipFile("foo.zip").open("foo.txt")
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f = io.open("foo.txt")
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f = io.open_code("foo.txt")
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f = codecs.open("foo.txt")
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f = bz2.open("foo.txt")
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f = gzip.open("foo.txt")
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f = dbm.open("foo.db")
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f = dbm.gnu.open("foo.db")
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f = dbm.ndbm.open("foo.db")
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f = dbm.dumb.open("foo.db")
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f = lzma.open("foo.xz")
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f = lzma.LZMAFile("foo.xz")
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f = shelve.open("foo.db")
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f = tokenize.open("foo.py")
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f = wave.open("foo.wav")
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f = tarfile.TarFile.taropen("foo.tar")
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f = fileinput.input("foo.txt")
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f = fileinput.FileInput("foo.txt")
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with contextlib.suppress(Exception):
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# The following line is for example's sake.
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# For some f's above, this would raise an error (since it'd be f.readline() etc.)
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data = f.read()
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f.close()
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# OK
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with tempfile.TemporaryFile() as f:
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data = f.read()
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# OK
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with tarfile.open("foo.tar") as f:
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data = f.add("foo.txt")
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# OK
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with tarfile.TarFile("foo.tar") as f:
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data = f.add("foo.txt")
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# OK
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with tarfile.TarFile("foo.tar").open() as f:
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data = f.add("foo.txt")
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# OK
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with zipfile.ZipFile("foo.zip") as f:
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data = f.read("foo.txt")
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# OK
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with zipfile.ZipFile("foo.zip").open("foo.txt") as f:
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data = f.read()
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# OK
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with zipfile.ZipFile("foo.zip") as zf:
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with zf.open("foo.txt") as f:
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data = f.read()
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# OK
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with io.open("foo.txt") as f:
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data = f.read()
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# OK
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with io.open_code("foo.txt") as f:
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data = f.read()
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# OK
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with codecs.open("foo.txt") as f:
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data = f.read()
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# OK
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with bz2.open("foo.txt") as f:
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data = f.read()
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# OK
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with gzip.open("foo.txt") as f:
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data = f.read()
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# OK
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with dbm.open("foo.db") as f:
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data = f.get("foo")
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# OK
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with dbm.gnu.open("foo.db") as f:
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data = f.get("foo")
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# OK
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with dbm.ndbm.open("foo.db") as f:
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data = f.get("foo")
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# OK
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with dbm.dumb.open("foo.db") as f:
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data = f.get("foo")
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# OK
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with lzma.open("foo.xz") as f:
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data = f.read()
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# OK
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with lzma.LZMAFile("foo.xz") as f:
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data = f.read()
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# OK
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with shelve.open("foo.db") as f:
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data = f["foo"]
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# OK
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with tokenize.open("foo.py") as f:
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data = f.read()
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# OK
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with wave.open("foo.wav") as f:
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data = f.readframes(1024)
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# OK
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with tarfile.TarFile.taropen("foo.tar") as f:
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data = f.add("foo.txt")
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# OK
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with fileinput.input("foo.txt") as f:
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data = f.readline()
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# OK
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with fileinput.FileInput("foo.txt") as f:
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data = f.readline()
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# OK (quick one-liner to clear file contents)
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tempfile.NamedTemporaryFile().close()
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tempfile.TemporaryFile().close()
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tempfile.SpooledTemporaryFile().close()
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tarfile.open("foo.tar").close()
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tarfile.TarFile("foo.tar").close()
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tarfile.TarFile("foo.tar").open().close()
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tarfile.TarFile.open("foo.tar").close()
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zipfile.ZipFile("foo.zip").close()
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zipfile.ZipFile("foo.zip").open("foo.txt").close()
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io.open("foo.txt").close()
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io.open_code("foo.txt").close()
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codecs.open("foo.txt").close()
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bz2.open("foo.txt").close()
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gzip.open("foo.txt").close()
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dbm.open("foo.db").close()
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dbm.gnu.open("foo.db").close()
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dbm.ndbm.open("foo.db").close()
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dbm.dumb.open("foo.db").close()
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lzma.open("foo.xz").close()
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lzma.LZMAFile("foo.xz").close()
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shelve.open("foo.db").close()
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tokenize.open("foo.py").close()
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wave.open("foo.wav").close()
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tarfile.TarFile.taropen("foo.tar").close()
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fileinput.input("foo.txt").close()
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fileinput.FileInput("foo.txt").close()
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def aliased():
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from shelve import open as open_shelf
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x = open_shelf("foo.dbm")
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x.close()
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from tarfile import TarFile as TF
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f = TF("foo").open()
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f.close()
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import dbm.sqlite3
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# OK
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with dbm.sqlite3.open("foo.db") as f:
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print(f.keys())
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# OK
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dbm.sqlite3.open("foo.db").close()
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# SIM115
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f = dbm.sqlite3.open("foo.db")
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f.close()
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# OK
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def func(filepath, encoding):
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return open(filepath, mode="rt", encoding=encoding)
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# OK
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def func(filepath, encoding):
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return f(open(filepath, mode="rt", encoding=encoding))
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