Python exception

try:
  # code block
except ValueError as ve:
  print(ve)

Python raise exception

	# this raises a "NameError"

>>> raise NameError('HiThere')

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: HiThere

Source: docs.python.org

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')

Python file open try except error

def FileCheck(fn):
    try:
      open(fn, "r")
      return 1
    except IOError:
      print "Error: File does not appear to exist."
      return 0

result = FileCheck("testfile")
print result

Source: stackoverflow.com

Python: raise error

class MyError(TypeError):
    pass

raise MyError('An error happened')

-2

Source: docs.python.org

Similar codes

3 votes158 views5 answers
Remove unnamed 0 column pandas
Python
1 vote181 views1 answer
Add background image in django uploaded file
Python
0 vote147 views1 answer
Saving model
Python
0 vote153 views1 answer
Accuracy for each class
Python
0 vote135 views1 answer
Unsupported media type django
Python
21 votes144 views4 answers
Pyautogui install
Python
1 vote133 views1 answer
Matrix sum elements
Python
3 votes139 views2 answers
Date object into date format python
Python
1 vote105 views1 answer
How to draw line in markdown
Python
0 vote138 views1 answer
Kroki - hello.dot
Python