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 votes330 views4 answers
Fraction in python
Python
1 vote328 views1 answer
How to use regex in a list
Python
10 votes395 views3 answers
How to insert sound in python
Python
230 votes672 views6 answers
How to use random in python
Python
1 vote324 views1 answer
Calculate pointbiseral correlation
Python
0 vote387 views1 answer
Binary to decimal in Python without inbuilt function
Python
5 votes326 views6 answers
Python pytube
Python
0 vote301 views1 answer
Flask mongoengine getting started
Python
1 vote314 views1 answer
Create np nan array
Python
2 votes340 views2 answers
Python - Count the Number of Keys in a Python Dictionary
Python