Can I restrict / limit a variable size in python ?
For example, I want to use an int variable which can hold ONLY upto 6 digit values, i.e., -999999 thru 999999. If I assign some value outside this range, I would like to catch the exception.
Is this possible ?
if -999999 > number > 999999:
# do something
(Aug-12-2019, 10:04 AM)mln4python Wrote: [ -> ]If I assign some value outside this range, I would like to catch the exception.
def clamp(n, min_n=-999999, max_n=999999):
if n < min_n:
raise Exception(f'To low <{n}> min number is -999999')
elif n > max_n:
raise Exception(f'To high <{n}> max number is 999999')
else:
return nTest:
Output:
>>> clamp(100)
100
>>> clamp(-10099)
-10099
>>>
>>> clamp(99999977)
Traceback (most recent call last):
File "<interactive input>", line 1, in <module>
File "<module1>", line 5, in clamp
Exception: To high <99999977> max number is 999999
>>>
>>> clamp(-9999990)
Traceback (most recent call last):
File "<interactive input>", line 1, in <module>
File "<module1>", line 3, in clamp
Exception: To low <-9999990> min number is -999999
class Limited:
def __init__(self, value=None):
self._value = value
@property
def limited(self):
return self._value
@limited.setter
def limited(self, value):
if value < -999999:
raise ValueError('Value out of bounds: less than -999999')
elif value > 999999:
raise ValueError('Value out of bounds: greater than 999999')
else:
self._value = value
integer = Limited() # or Limited(0)
integer.limited = 1000
print(integer.limited)
integer.limited = -11000000Output:
100
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
<ipython-input-5-2400afb78752> in <module>
21 integer.limited = 100
22 print(integer.limited)
---> 23 integer.limited = -11000000
<ipython-input-5-2400afb78752> in limited(self, value)
12 def limited(self, value):
13 if value < -999999:
---> 14 raise ValueError('Value out of bounds: less than -999999')
15 elif value > 999999:
16 raise ValueError('Value out of bounds: greater than 999999')
ValueError: Value out of bounds: less than -999999
(Aug-12-2019, 11:40 AM)ThomasL Wrote: [ -> ]class Limited:
def __init__(self, value=None):
self._value = value
@property
def limited(self):
return self._value
@limited.setter
def limited(self, value):
if value < -999999:
raise ValueError('Value out of bounds: less than -999999')
elif value > 999999:
raise ValueError('Value out of bounds: greater than 999999')
else:
self._value = value
integer = Limited() # or Limited(0)
integer.limited = 1000
print(integer.limited)
integer.limited = -11000000Output:
100
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
<ipython-input-5-2400afb78752> in <module>
21 integer.limited = 100
22 print(integer.limited)
---> 23 integer.limited = -11000000
<ipython-input-5-2400afb78752> in limited(self, value)
12 def limited(self, value):
13 if value < -999999:
---> 14 raise ValueError('Value out of bounds: less than -999999')
15 elif value > 999999:
16 raise ValueError('Value out of bounds: greater than 999999')
ValueError: Value out of bounds: less than -999999
Thanks for the help Thomas! This is what I was looking for... I am able to do additional coding as per my requirement. Thanks again!