problem with eval while using PythonCard

[Michal Lipinski]

Hi

its my first post. I have a problem, I want to user eval() function in
a for loop to set labels to staticText so i done something like this:

dzien=self.components.Calendar.GetDate().GetDay()
for i in range(1,8):
act=dzien+i -1
eval( 'self.components.d' + str(i) + '.text = "'+ str(act) + '"')

but there is a problem, the program returned error:

File "/home/lipton/Projekty/kami-organizer/grafik.py", line 27, in __init__
eval( 'self.components.d' + str(i) + '.text = "'+ str(act) + '"')
File "<string>", line 1
self.components.d1.text = "25"

SyntaxError: invalid syntax

dont know what is wrong, becouse when i copy and paste in to code :
self.components.d1.text = "25"

it work great, but when Im trying to do it using eval() it give me a SyntaxError

Please help.

ps. sorry for my english

 

[7stud]

Hi

its my first post. I have a problem, I want to user eval() function in
a for loop to set labels to staticText so i done something like this:

dzien=self.components.Calendar.GetDate().GetDay()
for i in range(1,8):
act=dzien+i -1
eval( 'self.components.d' + str(i) + '.text = "'+ str(act) + '"')

but there is a problem, the program returned error:

File "/home/lipton/Projekty/kami-organizer/grafik.py", line 27, in __init__
eval( 'self.components.d' + str(i) + '.text = "'+ str(act) + '"')
File "<string>", line 1
self.components.d1.text = "25"

SyntaxError: invalid syntax

dont know what is wrong, becouse when i copy and paste in to code :
self.components.d1.text = "25"

it work great, but when Im trying to do it using eval() it give me a SyntaxError

Please help.

ps. sorry for my english

How about something like this:


############
#make object:

class S(object)ass
class X(object)ass
class Y(object)ass

s = S()
s.components = X()
s.components.d1 = Y()
s.components.d1.text = "hello world"

###########

obj = getattr(s.components, "d" + str(1))
obj.text = "goodybe"
print s.components.d1.text

 

[7stud]

Here's a complete example:

###################
#create object 's':

class S(object)ass
class X(object)ass
class Y(object)ass

s = S()
s.components = X()
s.components.d1 = Y()
s.components.d2 = Y()
s.components.d3 = Y()
######################

######################
set some initial values:
for i in range(1, 4):
obj = getattr(s.components, "d" + str(i))
obj.text = "hello world"
#####################

#####################
#change the values:
for i in range(1, 4):
getattr(s.components, "d" + str(i)).text = "goodybe"
#####################

#####################
#print out the new values:
for i in range(1, 4):
print getattr(s.components, "d" + str(i)).text
#####################

 

[7stud]

now it's working just fine. but still I dont know why eval dont work ?

and thx for help

25 May 2007 15:05:03 -0700, 7stud <[email protected]>:










--
Pozdrawiam

Micha³ Lipiñski

http://lipton.kom.pl

1) Don't use eval()

2) Don't use eval()

3) eval() only works on python "expressions". In python, an
assignment statement is not an expression.