catch valueerror python code example

Example 1: except as Exception:

>>> def catch():
...     try:
...         asd()
...     except Exception as e:
...         print e.message, e.args
... 
>>> catch()
global name 'asd' is not defined ("global name 'asd' is not defined",)

Example 2: catch error python

import traceback

dict = {'a':3,'b':5,'c':8}
try:
  print(dict[q])
 
except:
  traceback.print_exc()
  
# This will trace you back to the line where everything went wrong. 
# So in this case you will get back line 5

Example 3: python catch exception

try:
   # Code to test / execute
   print('Test')
except (SyntaxError, IndexError) as E:  # specific exceptions
   # Code in case of SyntaxError for example
   print('Synthax or index error !')
except :
   # Code for any other exception
   print('Other error !')
else:
   # Code if no exception caught
   print('No error')
finally:
   # Code executed after try block (success) or any exception (ie everytime)
   print('Done')

# This code is out of try / catch bloc
print('Anything else')

Example 4: catch error data with except python

import sys
try:
	S = 1/0 #Create Error
except: # catch *all* exceptions
    e = sys.exc_info()
    print(e) # (Exception Type, Exception Value, TraceBack)

############
#    OR    #
############
try:
	S = 1/0
except ZeroDivisionError as e:
    print(e) # ZeroDivisionError('division by zero')