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45 lines
1.4 KiB
Python
45 lines
1.4 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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# This file is called from a test in test_pandas.py.
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from concurrent.futures import ThreadPoolExecutor
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import faulthandler
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import sys
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import pyarrow as pa
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num_threads = 60
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timeout = 10 # seconds
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def thread_func(i):
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pa.array([i]).to_pandas()
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def main():
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# In case of import deadlock, crash after a finite timeout
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faulthandler.dump_traceback_later(timeout, exit=True)
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with ThreadPoolExecutor(num_threads) as pool:
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assert "pandas" not in sys.modules # pandas is imported lazily
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list(pool.map(thread_func, range(num_threads)))
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assert "pandas" in sys.modules
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if __name__ == "__main__":
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main()
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