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in Technique[技术] by (71.8m points)

python解释器import和脚本的执行影响了结果

#test_name0.py

import test_name1
test_name1.test()

#test_name1.py

def test():
    print __name__
    
print __name__

如果单独运行test_name0.py的脚本,或者单独在解释器中import test_name0得到的结果是

test_name1
test_name1

但是如果在运行了test_name0.py的脚本后再在解释器中import test_name0,或者在解释器中import test_name0后再运行test_name0.py的脚本,得到的结果是

test_name1

我想知道为什么会出现这种情况,我使用的IDE是spyder(python2.7)


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by (71.8m points)

python模块有缓存,import一次后再import,模块顶级作用域的代码不会再执行


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