Python-"NameError:名称'filename'未定义" [英] Python - "NameError: name 'filename' is not defined"

问题描述

collection = filename[:filename.find('.')]  
working_directory = 'C:/Users/Anshuman Misra/Downloads/'  
json_file = filename + '.json'

mongoimport_cmd = 'mongoimport -h 127.0.0.1:27017 ' + \
                  '--db ' + db_name + \
                  ' --collection ' + collection + \
                  ' --file ' + working_directory + json_file

在导入之前，请删除集合(如果存在)(即重新运行)

if collection in db.collection_names():  
    print 'Dropping collection: ' + collection
    db[collection].drop()

执行命令

print 'Executing: ' + mongoimport_cmd  
subprocess.call(mongoimport_cmd.split())

推荐答案

您在哪里定义filename?您在第一行使用它，但是我看不到它的定义位置.

Where did you define filename? You are using it on the first line but I don't see where it was defined.

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