compare « integer « Python Data Type Q&A

1. Compare object instances for equality by their attributes in Python    stackoverflow.com

What is the best way to compare two instances of some object for equality in Python? I'd like to be able to do something like Example:

doc1 = ErrorDocument(path='/folder',title='Page')
doc2 = ErrorDocument(path='/folder',title='Page')

if doc1 == ...

2. Integer comparison in python slows everything down to a crawl    stackoverflow.com

The following code is causing me enormous headaches:

def extract_by_letters(letters, dictionary):

    for word in dictionary:
       for letter in letters:
     ...

3. String comparison in Python: is vs. ==    stackoverflow.com

I noticed a Python script I was writing was acting squirrelly, and traced it to an infinite loop, where the loop condition was "while line is not ''". Running through it ...

4. How does Python compare string and int?    stackoverflow.com

The following snippet is annotated with the output (as seen on ideone.com):

print "100" < "2"      # True
print "5" > "9"     ...

5. python: comparing values string/integer    stackoverflow.com

i will be comparing two values like this:\

value1>value2

6. python problems with integer comparision    stackoverflow.com

I'm using a function in a card game, to check the value of each card, and see if it is higher than the last card played.

def Valid(card):
prev=pile[len(pile)-1]
cardValue=0
prevValue=0
if card[0]=="J":
    ...

7. Why is int(50)    stackoverflow.com

In python 3, int(50)<'2' causes a TypeError, and well it should. In python 2.x, however, int(50)<'2' returns True (this is also the case for other number formats, but int exists ...

8. what is the best way to compare floats for almost equality in python    stackoverflow.com

It's well known that comparing floats for equality is a little fiddly due to rounding and precision issues. For example: http://www.cygnus-software.com/papers/comparingfloats/comparingfloats.htm What is the recommended way of deal with this in Python? Surely ...

9. comparing int float python problem    stackoverflow.com

I have this code:

def fit(self,p1,p2,w):
    p=p1    
    m=self.bit(p,w)
    if p1.y!=p2.y:
        if m&0x30:
 ...

10. Compare integer to values in a list. python    stackoverflow.com

I am trying to figure out if there is a way to get a logical list through comparison in Python 3. Basically what I want to input is this

x = [1,2,3,4,5,6,7,8,9]
xlist = ...

11. Why is '362' > 378?    stackoverflow.com

Possible Duplicate:
How does Python compare string and int?

widths = [image.width ...

12. Python comparing strings to their equivalent integers effeciently    stackoverflow.com

What's the most efficient way to compare two python values both of which are probably strings, but might be integers. So far I'm using str(x)==str(y) but that feels inefficient:

>>> a ...

13. Compare two integers for similarity     stackoverflow.com

Example:

number1 = 54378
number2 = 54379
if number1 (is similar to) number2:
   print (number1 + " " + number2)
   input("what to do")

14. compare list(of integers) using id() in python    stackoverflow.com

I found a strange thing in Python when I tried to compare lists composed of integers. For example:

In [35]: id(range(1,5)),id(range(1,15)),id(range(16,0,-1))
Out[35]: (155687404, 155687404, 155687404)