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Friends here

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we are going to discuss three important string operations.

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They are like 'join', 'center' and 'zfill', right?

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So how they are going to work?

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Let me show you that by taking my

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Python Shell. Of course

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you can also write in your Python Script, but I am taking

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simply Python command line.

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Let's say I have a string called "python", right?

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See my requirement is, from this 'x',

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I mean from this "python" word

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I want to create a "python" word by placing between each two

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letters, two characters,

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a space, I mean I want to create a 'y' data such that it has

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to be in this way,

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but I want to create that from your 'x' itself. Simply 'y=',

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quotations, and inside that just "-",

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'.join', then your 'x', so just join space inside of your 'x' between

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your characters.

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Simply print 'y'.

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[no audio]

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Right. Otherwise directly you can print. See as of now

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I am printing 'x' in this way. Now 'print', you can also do something like,

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suppose I am adding "*" between two characters in

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my given 'x'. See the output. Or I want to print one by one letter,

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then add "\n". You know "\n" means new line. See that, you're

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getting your string in multiple lines. In each line one character

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because "\n" purpose is. Otherwise, let me add "\t". See the

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output. You're adding tab between two characters of your given string.

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[no audio]

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Right. So this is the importance of your 'join' string.

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Right. Fine. Then the next one is 'center'.

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See guys, sometimes you have some multiple strings and you

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want to print all strings in the center of your terminal

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or in the centre of some width of your terminal.

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Let's say I have a 'my_str' called simply "python",

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and I have one more new string called

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"python scripting", and let me take some third string

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'my_str3='

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"string operations".

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Okay. Now see that I am going to print,

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first of all let me take only 'my_str'

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'.center'. So all strings I want to print with the width

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of suppose some 20 characters. Now, first of all let me print

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my first string.

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So in 20 spaces your string is there in the middle of that.

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Likewise I want to print,

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let me use format. All strings at a time

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I want, I am going to print.

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Right. So in the next line, I want to print your

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'my_new_str.center(20)'.

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See the output so that you can understand

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what is the purpose of this 'center'

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Then I want to print your

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next variable called "my_str_3

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.center(20)', and see the output.

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Something missing. Let me see that. Yeah, quotations is missing,

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right. See the output.

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'center', yeah somewhere spelling mistake.

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See.

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Nothing is there guys, whatever the length you're giving, first

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your Python will take that much length, in that length

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it will try to print your string from middle towards left and right.

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That's it.

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Okay. Now 'zfill', zero add, zero fill.

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Let me do one more thing like

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'print', let me take simply your string,

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I am printing. You're getting something

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no, but I want to print this string,

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okay, with some 10 spaces.

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And anyway your "python" string consists of only six characters,

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the remaining four places

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I want to pad with 0 towards left. See that.

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Total spaces are ten, right. So you are given string length

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is six. Remaining four spaces towards left

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I want to pad with zeros,

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so 'padding', this operation is called actually 'padding'.

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Right. This operation is called actually the 'padding'.

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[no audio]

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Okay, so guys

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these are the operation uses of your 'join', 'center' and 'zfill'

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Right. Okay guys,

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thank you for watching this video.

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