Python-Identifiers-Class 1 | Mastering Python Identifiers: Class 1 - The Basics | Python Decoded
CLASS-1:
Dive into the foundational aspects of Python identifiers in this comprehensive class. From understanding the syntax to grasping the key principles, Class 1 lays the groundwork for mastering identifier usage in Python.
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lab setup with Python: fisrt video
Python Identifiers: a name in python program is called identifier
-class name, function, module name , variable name
rules:
A-rules
1. alphabet symbols (a-z or A-Z)
2. digits-0 to 9
3.underscore symbol (_) other than not avalid symbol
rush = 20
ru$h = 20 no valid
b. Ir should not starts with digits
123lab X
lab123 valid
c. case sensitive
arham = 20
ARHAM = 30
print(arham)=20
print(ARHAM)=30
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Reserved words in Python
33 words are reserved in Python
TRUE, FALSE, NONE
and , or, not , is
if, elif, else
while, for, break, continue, return, in, yield
try, except,finally, raise, assert
import, from, as, class, def, pass, global, nonlocal, lambda, del, with
1. alphabet
2. except 3 r words all are lower case alphabet symbol
Python Inbuilt Data Types: 14
1.Int
2.Float
3.Complex
4.Bool
5.String
6.Bytes
7.Bytearray
8.Range
9.List
10.Tuple
11.set
12.frozenset
13.Dictionary
14.None
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