Python Tutorial to learn Python programming with examples
Complete Python Tutorial for Beginners Playlist : https://www.youtube.com/watch?v=hEgO047GxaQ&t=0s&index=2&list=PLsyeobzWxl7poL9JTVyndKe62ieoN-MZ3
Python Tutorial in Hindi : https://www.youtube.com/watch?v=JNbup20svwU&list=PLk_Jw3TebqxD7JYo0vnnFvVCEv5hON_ew
In this video we will see :
– What is variable
– Why do we need them
– How to assign value to variable
– Fetching value of previous operation
– String value to variable
– Fetching value of string variable by index number
– Finding length of string
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source
Isn't the length going to be 10 instead of 11
sir, this course is like finding a coca cola in the middle of the desert. i was taking a course at my uni about this language but it was so complicated and then i find this playlist, thank you very much for sharing this
How can len function is giving 11 output your name is of 10 string character
sir while using len fxn ,its taking space as a character and count it to. i want space between character and dont want it to be counted. what is the way of doing that sir
Telusko n Rocks
Last question ans Telusko n Rocks
thanku so much sir for effort without any expecting anything….
But your name is of 10 letters and it's showing 11 why?
Really looks simple when you explain things. Since coming from a non-coding background, this teaching technique method is really easy to understand.
>>> print ('Thanks Navin')
🙂
answer -> Telusko n Rocks
Telusko n Rocks
7:00 sir what if I want only O and B letters out of YouTube I mean only 1 and 5….Will it be possible sir
Print like This ######### Telusko n Rocks
Telusko
Rocks
used the underscore and a number i got the error below.
print (_+ 2)
TypeError Traceback (most recent call last)
Input In [18], in <cell line: 1>()
—-> 1 print (_+ 2)
TypeError: can only concatenate str (not "int") to str
>>> print(r'Telusuko n Rocks')
Telusuko n Rocks
Super. You made session as more info with simple.
Can we have a notes of all the topics explained in this video?
Anyways you made it easy and fun to understand this topic
Looking forward to learn Python from you
Thanks
Telusko n Rocks
Same as it is because here r represents raw string which give same string.
Navin reddy that's actually 10 right!?
Variables
Variables are containers for storing data values.
Creating Variables
Python has no command for declaring a variable.
A variable is created the moment you first assign a value to it.
Variables do not need to be declared with any particular type, and can even change type after they have been set.
x = 5
y = "John"
print(x)
print(y)
Output : 5 john
Casting
If you want to specify the data type of a variable, this can be done with casting.
x=str(3)
y=int(3)
z=float(3)
print(x)
print(y)
print(z)
Output:
3
3
3.0
Get the Type
You can get the data type of a variable with the type() function.
x = 5
y = "John"
print(type(x))
print(type(y))
Output :
<class 'int'>
<class 'str'>
Single or Double Quotes?
String variables can be declared either by using single or double quotes:
x = "John"
print(x)
#double quotes are the same as single quotes:
x = 'John'
print(x)
Case-Sensitive
Variable names are case-sensitive.
a = 4
A = "Sally"
#A will not overwrite
Python – Variable Names
Variable Names
A variable can have a short name (like x and y) or a more descriptive name (age, carname, total_volume). Rules for Python variables:
• A variable name must start with a letter or the underscore character
• A variable name cannot start with a number
• A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )
• Variable names are case-sensitive (age, Age and AGE are three different variables)
Legal variable names:
myvar = "John"
my_var = "John"
_my_var = "John"
myVar = "John"
MYVAR = "John"
myvar2 = "John"
Illegal variable names:
2myvar = "John"
my-var = "John"
my var = "John"
Remember that variable names are case-sensitive
Multi Words Variable Names
Variable names with more than one word can be difficult to read.
There are several techniques you can use to make them more readable:
Camel Case
Each word, except the first, starts with a capital letter:
myVariableName = "John"
Pascal Case
Each word starts with a capital letter:
MyVariableName = "John"
Snake Case
Each word is separated by an underscore character:
my_variable_name = "John"
Nice
Telusko n Rocks : the answer to the quiz at the end of the video
It is well understood