try:
someFunction()
except Exception as ex:
template = "An exception of type {0} occurred. Arguments:\n{1!r}"
message = template.format(type(ex).__name__, ex.args)
print (message)>>> 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",)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
import sys
try:
f = open('myfile.txt')
s = f.readline()
i = int(s.strip())
except OSError as err:
print("OS error: {0}".format(err))
except ValueError:
print("Could not convert data to an integer.")
except:
print("Unexpected error:", sys.exc_info()[0])
raise#Syntax:
try:
statement
except Exception as varname:
statement
"""
Some specific exceptions (Lengthy but time-saving )-
ArithmeticError - Raised when an error occurs in numeric calculations
AssertionError - Raised when an assert statement fails
AttributeError - Raised when attribute reference or assignment fails
Exception - Base class for all exceptions
EOFError - Raised when the input() method hits an "end of file" condition (EOF)
FloatingPointError - Raised when a floating point calculation fails
GeneratorExit - Raised when a generator is closed (with the close() method)
ImportError - Raised when an imported module does not exist
IndentationError - Raised when indendation is not correct
IndexError - Raised when an index of a sequence does not exist
KeyError - Raised when a key does not exist in a dictionary
KeyboardInterrupt - Raised when the user presses Ctrl+c, Ctrl+z or Delete
LookupError - Raised when errors raised cant be found
MemoryError - Raised when a program runs out of memory
NameError - Raised when a variable does not exist
NotImplementedError - Raised when an abstract method requires an inherited class to override the method
OSError - Raised when a system related operation causes an error
OverflowError - Raised when the result of a numeric calculation is too large
ReferenceError - Raised when a weak reference object does not exist
RuntimeError - Raised when an error occurs that do not belong to any specific expections
StopIteration - Raised when the next() method of an iterator has no further values
SyntaxError - Raised when a syntax error occurs
TabError - Raised when indentation consists of tabs or spaces
SystemError - Raised when a system error occurs
SystemExit - Raised when the sys.exit() function is called
TypeError - Raised when two different types are combined
UnboundLocalError - Raised when a local variable is referenced before assignment
UnicodeError - Raised when a unicode problem occurs
UnicodeEncodeError - Raised when a unicode encoding problem occurs
UnicodeDecodeError - Raised when a unicode decoding problem occurs
UnicodeTranslateError - Raised when a unicode translation problem occurs
ValueError - Raised when there is a wrong value in a specified data type
ZeroDivisionError - Raised when the second operator in a division is zero
"""try except