I'm using Python 2.6.1 on Mac OS X.
I have two simple Python files (below), but when I run
python update_url.py
I get on the terminal:
Traceback (most recent call last):
File "update_urls.py", line 7, in <module>
main()
File "update_urls.py", line 4, in main
db = SqliteDBzz()
NameError: global name 'SqliteDBzz' is not defined
I tried renaming the files and classes differently, which is why there's x and z on the ends. ;)
class SqliteDBzz:
connection = ''
curser = ''
def connect(self):
print "foo"
def find_or_create(self, table, column, value):
print "baar"
import sqlitedbx
def main():
db = SqliteDBzz()
db.connect
if __name__ == "__main__":
main()
You need to do:
import sqlitedbx
def main():
db = sqlitedbx.SqliteDBzz()
db.connect()
if __name__ == "__main__":
main()
尝试
from sqlitedbx import SqliteDBzz
Importing the namespace is somewhat cleaner. Imagine you have two different modules you import, both of them with the same method/class. Some bad stuff might happen. I'd dare say it is usually good practice to use:
import module
over
from module import function/class
That's How Python works. Try this :
from sqlitedbx import SqliteDBzz
Such that you can directly use the name without the enclosing module.Or just import the module and prepend 'sqlitedbx.' to your function,class etc
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