Python 3:ResourceWarning:unclosed文件<_io.TextIOWrapper name ='PATH_OF_FILE'
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当我使用“python normalizer / setup.py test”在python中运行测试用例时
“我得到以下例外
ResourceWarning: unclosed file <_io.TextIOWrapper name='/Users/minisha/workspace/govTech/aiworkspace/skillset-normalization-engine/normalizer/lib/resources/jobkredskills.taxonomy' mode='r' encoding='utf-8'>
在代码中,我正在阅读如下的大文件:
def read_data_from_file(input_file):
current_dir = os.path.realpath(
os.path.join(os.getcwd(), os.path.dirname(__file__)))
file_full_path = current_dir+input_file
data = open(file_full_path,encoding="utf-8")
return data
我错过了什么?
解决方法:
从Python unclosed resource: is it safe to delete the file?起
This ResourceWarning means that you opened a file, used it, but then forgot to close the file. Python closes it for you when it notices that the file object is dead, but this only occurs after some unknown time has elapsed.
def read_data_from_file(input_file):
current_dir = os.path.realpath(
os.path.join(os.getcwd(), os.path.dirname(__file__)))
file_full_path = current_dir+input_file
with open(file_full_path, 'r') as f:
data = f.read()
return data
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