Python variable's

Python variable asin value for a objects and researve memory location , python have no command for define variables

Variable's

x=5
y="hallo"
#python understand variable datatype
print(x)
print(y)

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Output

5
hallo

who find type of variables
python understand type of variable

Example

x=5
y="hallo world"
#python understand variable datatype
print(type(x))
print(type(y))

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Output

Int
string

Variable Names

rules of variable names

• variable name can't use symbols except underscore(_).
• variable cannot start with a number
• variable must start with alphabet or underscore(_).
• can't use reserve word(keywords)

Example

variable="hallo world"
_myvariable="hallo world"
variable2="hallo world"
Variable="hallo world"

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incorrect method of writing a variable

Example

@variable="hallo world"
4myvariable="hallo world"
variable 2="hallo world"
~Variable="hallo world"

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addign multipal values

multipal variable have multipal values

Example

x, y, z="hallo","hi","who are you"
print(x)
print(y)
print(z)

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Output

hallo
hi
who are you

one value for multiple variables

Example

x, y,z="hallo"
print(x)
print(y)
print(z)

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Output

hallo
hallo
hallo

Global Variables

global variable crated outside of function , global variable use inside and outside of function

Global Function

def  myfunc():
    global  x
    x="this is global variable"
myfunc()
print(x)

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Output

this is global variable