Hi I am new to writing module and object oriented python code. I am
trying to understand namespaces and classes in python.
I have the following test case given in three files runner , master
and child. I am getting an error within child where in one line it
understands variable master.name and in the next line it gives a
NameError as given here
" print "Reset name now from %s to %s , oldname %s is saved in
mastertrash" % (master.trash, master.name , master.trash)
NameError: name 'master' is not defined"
Sorry for a long post because I dont know how to frame my question.
I am pasting the code contained in the three files and the error
message here
Thanks for your help
harijay
The detailed error I get is
hazel:tmp hari$ python runner.py
Traceback (most recent call last):
File "runner.py", line 3, in <module>
import child
File "/Users/hari/rpc-ccp4/tmp/child.py", line 1, in <module>
class child():
File "/Users/hari/rpc-ccp4/tmp/child.py", line 9, in child
print "Reset name now from %s to %s , oldname %s is saved in
mastertrash" % (master.trash, master.name , master.trash)
NameError: name 'master' is not defined
#File runner.py
#!/usr/bin/python
import master
import child
if __name__=="__main__":
print "RUNNING RUNNER"
m = master.master("hj","oldhj")
s = child.child(m)
print "Now I have the variable master name %s and master.trash %s" %
(m.name , m.trash)
#File master.py
class master():
name=""
trash=""
def __init__(self,name,trash):
self.name = name
self.trash = trash
#File child.py
class child():
def __init__(self,master):
print "Master name is %s" % master.name
print "Now seeting master name to setnameinchild in child.py "
tmp = master.trash
master.trash = master.name
master.name = "setnameinchild"
print "Reset name now from %s to %s , oldname %s is saved in
mastertrash" % (master.trash, master.name , master.trash)
--
http://mail.python.org/mailman/listinfo/python-list
