Victor Subervi wrote:
Hi;
I think I finally have an interesting problem for y'all. I need to
import a script from a lower dir, forcing me to change dirs:
cwd = os.getcwd()
os.chdir('%s/..' % cwd)
sys.path.append(os.getcwd())
from templateFrame import top, bottom
os.chdir(cwd)
There's no need to actually change current directory. Just do this:
sys.path.append(os.path.dirname(os.getcwd()))
from templateFrame import top, bottom
Because I've found I must do my form evaluations *before* changing dir
as above, I am forced to call these values as globals:
form = cgi.FieldStorage()
store = form.getfirst('store')
cat = form.getfirst('cat')
id = form.getfirst('id')
pkg = form.getfirst('pkg')
patientID = form.getfirst('patientID')
Now, apparently because of python's problem with globals, when I call
"id" as follows:
cursor.execute('select ProductID from productsPackages where
PackageID=%s' % id)
I get the following error:
/var/www/html/angrynates.com/cart/Store_frame2.py
<http://angrynates.com/cart/Store_frame2.py>
135 cursor.close()
136 bottom()
137
138 Store_frame2()
139
Store_frame2 = <function Store_frame2>
/var/www/html/angrynates.com/cart/Store_frame2.py
<http://angrynates.com/cart/Store_frame2.py> in Store_frame2()
119 printAProduct()
120 else:
121 cursor.execute('select ProductID from productsPackages where
PackageID=%s' % id)
122 for id in [itm[0] for itm in cursor]:
123 printAProduct(id)
global cursor = <MySQLdb.cursors.Cursor object>, cursor.execute = <bound
method Cursor.execute of <MySQLdb.cursors.Cursor object>>, global id = '1'
UnboundLocalError: local variable 'id' referenced before assignment
args = ("local variable 'id' referenced before assignment",)
Full code below. Please advise.
Line 121 refers to 'id', but line 122 assigns to 'id' (the 'for' loop).
In a function, if you assign to a variable then that variable defaults
to being local. You're trying to use the local variable before assigning
a value to it. Having a local variable called 'id' means that you can't
refer to the global variable of the same name.
You're also assigning to 'i' on line 113, but not referring to it
elsewhere in the function.
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