 |  |  |  |  |  |  |  |
Converting string to python code
Please support our Python advertiser: Programming Forums - DaniWeb Sister Site
 |
•
•
Join Date: Jul 2008
Posts: 58
Reputation: 
Solved Threads: 1
Junior Poster in Training
Hi all. Is there any way that if I give python a string, it can convert it into code? Example, say I am given this string:
Now I want to convert it into code:
Any ideas?
Thanks.
python Syntax (Toggle Plain Text)
Now I want to convert it into code:
python Syntax (Toggle Plain Text)
Any ideas?
Thanks.
How are you giving the strings?
If you are giving a complete python program in the string, you do a trick:
Write all the string into a file and execute it with the interpreter by using a execv or system command.
If you are giving a complete python program in the string, you do a trick:
Write all the string into a file and execute it with the interpreter by using a execv or system command.
Siddhant Sanyam
(Not posting much)
Migrate to Standard C++ :When to tell your C++ Code is Non-Standard.
Please Read before posting: How To Ask Questions The Smart Way
(Not posting much)
Migrate to Standard C++ :When to tell your C++ Code is Non-Standard.
Please Read before posting: How To Ask Questions The Smart Way
•
•
Join Date: Jul 2008
Posts: 58
Reputation:
Solved Threads: 1
Junior Poster in Training
I would be getting the string from a text file, but i'll try what you recommended
Please know that this is a security risk. Use the exec function:
python Syntax (Toggle Plain Text)
•
•
Join Date: Jul 2008
Posts: 58
Reputation:
Solved Threads: 1
Junior Poster in Training
Thanks! but, why is the exec function is a risk?
You are loading code from a string into your application and running it. Unless you have compete and absolute control over the string (you create it yourself, and no part of it comes from outside our program), there is always a way for someone to inject some malicious code into your program.
•
•
Join Date: Jul 2008
Posts: 58
Reputation:
Solved Threads: 1
Junior Poster in Training
oh I see. lol with the stuff i'm working on, I won't need to worry about that, but thanks for the tip!
•
•
Join Date: Jul 2008
Posts: 58
Reputation:
Solved Threads: 1
Junior Poster in Training
Hate to bother you, but I have one more question. I have this string:
and when I do exec:
python doesn't return anything (like init values that have been printed and returned statements). What could be the problem?
python Syntax (Toggle Plain Text)
python Syntax (Toggle Plain Text)
What does it return, an error message? exec() will work on things like print statements or 1+2-3, but if you call a function or class then you must already have that function defined, otherwise an error message. Perhaps if you explained what you are trying to do, there would be an easier way, like a generic class that you would pass the strings in the file to as parameters --> some_class( the_string ).
Linux counter #99383
•
•
Join Date: Jul 2008
Posts: 58
Reputation:
Solved Threads: 1
Junior Poster in Training
Well, I have a class imported from a file:
in the main program, I read a text file which outputs:
I assign that string from the text file to a var called 'temp_string', and then I go:
It doesn't work, but I write up some code that (based of the strings from the text file) recognizes the first four characters in a line, a.k.a 'Vent', and then gets the string(s) from in between the characters '(' and ',' and then ',' and ','. The last argument just stays a string. I then pass a new instance with those new given values. It's no big deal if the exec thing doesn't work, but thanks any ways
python Syntax (Toggle Plain Text)
python Syntax (Toggle Plain Text)
python Syntax (Toggle Plain Text)
|
Similar Threads
- Display Python code on Blogspot (Python)
- python code security or set up a complied python code with a password (Python)
- Converting String to Long (Java)
- converting string[][] to float[] (C)
- Help with Python code and accessing ZODB (Python)
- String to Int (C++)
- Converting a String into an integer array (C)
- Converting String to Integer help (C++)
Other Threads in the Python Forum
- Previous Thread: Should I use a global variable (array in this case) or should i return the array
- Next Thread: wxpython help
| Thread Tools | Search this Thread |
You need to join our community in order to build your list of favorite forums. You can visit the forum index for a listing of all forums.
Latest Python Posts
- Today's Posts
- Unanswered Threads
Related Forum Features
address anydbm app beginner changecolor cipher class conversion coordinates corners curves definedlines development dictionary dynamic events examples excel feet file float format ftp function generator getvalue gui handling homework images import input ip java keycontrol line linux list lists loan loop maintain matching maze millimeter mouse mysqldb number numbers output parsing path permissions port prime programming projects py2exe pygame pymailer python queue random rational raw_input recursion recursive scrolledtext searchingfile shebang slicenotation split string strings table terminal text thread threading time tkinter tlapse tooltip tuple tutorial type ubuntu unicode url urllib urllib2 valueerror variable variables vigenere web windows wx.wizard wxpython xlwt
