DEV Community: Amrut

Accessing dictionaries in python for beginners

Amrut — Tue, 03 Aug 2021 13:53:50 +0000

Parameter Details

key = The desired key to lookup
value = The value to set or return

What exactly is a dictionary?

A real-life dictionary holds words and their meanings. As you can imagine, likewise, a Python dictionary holds key-value pairs. Also to be noted that they are Unordered and mutable.

How to create one ?

mydict = {}                #Empty dictionary
mydict = {'key' : 'value'} #Initialized dictionary
person = {'name':'xyz', 'age':23}

Built in Function for creating a dictionary: dict()


myperson = dict() #empty dictionary
myperson = dict(name="xyz", age=23) #here we have given value to dict function

# while using dict function we dont need quotes or colons.

Modifying a dictionary

myperson = dict(name="xyz", age=23) #creating a dict

myperson["email"] = "xyz@gmail.com" #adding email as key and its value to dict

Adding list to a dictionary

myperson['new_list'] = [1, 2, 3] #adding new_list as key and [1,2,3] as value

Adding Dictionary to a dictionary

myperson['new_dict'] = {'nested_dict': 1} #new_dict is the key and {'nested_dict': 1} is the value

To delete an item, delete the key from the dictionary

del myperson['email'] #here key is deleted

Iterating Over a Dictionary

Yes, we can iterate over dictionary. Such structures on which we can iterate are called ITERABLE and things which iterates, like 'i' in for loop, that 'i' is called ITERATOR(abstract explanation).

myperson = {'name':'xyz', 'age':23}

for key in myperson:
    print(key, myperson[key],sep=" : ")

# key is iterated , so key is iterator here

The items() method can be used to loop over both the key and value simultaneously

myperson = {'name':'xyz', 'age':23}

for key,values in myperson.items():
    print(key,values)

While the values() method can be used to iterate over only the values

myperson = {'name':'xyz', 'age':23}

for values in myperson.values():
    print(values)

Soon.

Cheatsheet of emmets

Amrut — Mon, 02 Aug 2021 12:54:09 +0000

Boilerplate

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8" />
 <title>Document /title>
/head>
<body>

</body>
</html>

basic elements

1) section

<section> </section>

2) .example

<div class="example"> </div>

3) section#intro

<section id="intro"> </section>

4) p>lorem10

<p>Lorem ipsum dolor sit amet
consectetur adipisicing elit. Neque,
facere? </p>

5) section#intro>.container

<section id="intro">
 <div class="container">
 </div>
</section>

6) p{your custom text}

<p>your custom text </p>

7) link:css

<link rel="stylesheet" href="style.css">

8) script:src

<script src=""> </script>

9) h3+p+p

<h3> </h3>
<p> </p>
<p> </p>

10) ul>li*3^p*3

<ul>
 <li> </li>
 <li> </li>
 <li> </li>
</ul>
<p> </p>
<p> </p>
<p> </p>

11) ul>li*4

<ul>
 <li> </li>
 <li> </li>
 <li> </li>
 <li> </li>
</ul>

12) h3+(ul>li*3)+h3

<h3> </h3>
<ul>
 <li> </li>
 <li> </li>
 <li> </li>
</ul>
<h3> </h3>

13) li.list-item-$*3

<li class="list-item-1"> </li>
<li class="list-item-2"> </li>
<li class="list-item-3"> </li>

Checkpoint

Amrut — Thu, 29 Jul 2021 09:22:16 +0000

Hey, how many of you are doing 100daysofcode?

Getting the Transcription of a Video From Youtube using google cloud platform.

Amrut — Wed, 28 Jul 2021 10:02:06 +0000

So, the other day I was searching for python code that gives me a transcript of any video, I did what all we do I searched everywhere on Internet but was unfortunate. But we are programmers best thing we do is search more on the internet. finally, I got the code I wanted, all thanks to
Pragnakalp Techlabs
. Although the code was a little different from my expectations I did some filters on it and made it to view the transcripts of the youtube video.
Be patient there are going to be few steps involved in our process !!


# pip install google-api-python-client
# pip install youtube_transcript_api

from apiclient.discovery import build
from youtube_transcript_api import YouTubeTranscriptApi

api_key = "Secret Key"  # replace it with your API key
video_id = str(input("Enter the video id: "))  # replace it with your channel id
youtube = build('youtube', 'v3',developerKey=api_key)

try:
        responses = YouTubeTranscriptApi.get_transcript(
            video_id, languages=['en'])
        print('\n'+"Video: "+"https://www.youtube.com/watch?v=" +
              str(video_id)+'\n'+'\n'+"Captions:")
        for response in responses:
            text = response['text']
            print(text)
except Exception as e:
        print(e)

# pip install google-api-python-client
# pip install youtube_transcript_api

from apiclient.discovery import build
from youtube_transcript_api import YouTubeTranscriptApi

api_key = "Secret Key"  # replace it with your API key
video_id = str(input("Enter the video id: "))  # replace it with your channel id
youtube = build('youtube', 'v3',developerKey=api_key)

try:
        responses = YouTubeTranscriptApi.get_transcript(
            video_id, languages=['en'])
        print('\n'+"Video: "+"https://www.youtube.com/watch?v=" +
              str(video_id)+'\n'+'\n'+"Captions:")
        for response in responses:
            text = response['text']
            print(text)
except Exception as e:
        print(e)

# pip install google-api-python-client
# pip install youtube_transcript_api

from apiclient.discovery import build
from youtube_transcript_api import YouTubeTranscriptApi

api_key = "Secret Key"  # replace it with your API key
video_id = str(input("Enter the video id: "))  # replace it with your channel id
youtube = build('youtube', 'v3',developerKey=api_key)

try:
        responses = YouTubeTranscriptApi.get_transcript(
            video_id, languages=['en'])
        print('\n'+"Video: "+"https://www.youtube.com/watch?v=" +
              str(video_id)+'\n'+'\n'+"Captions:")
        for response in responses:
            text = response['text']
            print(text)
except Exception as e:
        print(e)

For full tutorial how to get the API key and all that thing you can check out my medium article on this 👇👇👇

https://medium.com/@computer_geek/getting-the-transcription-of-a-video-from-youtube-using-google-cloud-platform-3c862d1276a5

To be honest, I am finding it little difficult to write code and syntax highlighting and inserting images on dev platform, but the code may not look very attractive but that works fine for any video on youtube.

And also you can follow me on my twitter

https://twitter.com/computer_geek77/

Best Resource for data structure and algorithms for beginners

Amrut — Sat, 17 Jul 2021 07:03:26 +0000

It's time for giving placement period some priority, in this section I would like to share with you guys, one of the best and structured way approach for technical interviews.

Let us assume that we have placement preparation within one or two years and we just know basic level of coding and don't even know implementation of linkedlist and other data structures. Then is it possible to crack product based companies????

THE ANSWER is YESSSSS.....

So, if you know hindi(language)then you can follow pepcoding youtube channel

some of the highlight of this youtube channel are their team have posted more 1200+ videos on each and every question of datastructure and algorithm in Java.
Including every level of ds algo - like arrays, linkedlist, stack, queues, etc
I personally love the way Sumeet Malik sir teaches you and you will definitely be his fan once you attend his single lecture, you're gonna fell in love with DS Algo, I bet.

They have team of few peoples who teach each and every concept in live sessions usually 10-15 minutes long on youtube and other videos are available in their playlist, you can check that out.

But, It is just a youtube channel, how is that a structured way for technical interview??

As I said you will get each and every concept on youtube channel but they have one website where you can watch video topic wise and attempt the question simultaneously.

https://www.pepcoding.com/resources/

Some features of this website

They have managed more than 1000 questions in
difficulty wise level ( level-1 begineer ,
level-2 intermediate , level-3 Advanced)and
that too topic wise.
You will get video solution and problem
explanation of each and every problem.
If you are preparing for placements and You
know hindi, you'll thank me later about this.

The difference between theirs youtube channel and website is that, On website you will get every thing very well organised, like you try to attempt a question and (if not able to attempt) then you get immediate solution to that.

I know there are people like me who are begineer, who are advised to solve every thing from GFG but dont know the initial process of how to start, how to plan things out, how to give time for one problem as begineer, intermediate and advance.
You can try this out.

So, I hope you guys would get benefitted from this, and wish you for best placements possible.

Thanks for reading.

Opensource... NO more free?!

Amrut — Thu, 15 Jul 2021 11:02:02 +0000

So, few days ago a new technology entered in industry github copilot.

Github copilot is basically a code suggestion software like other software like tabnine and kite but copilot is much more than that, it actually gives you the whole function of code just with one tab button on your keyboard.

What is point of concern then?
The problem is that github copilot will auto-complete your code if it has previously written somewhere on github.

Then what?
Github is web-based version control software, its free of cost all the people in whole world use this thing to save all their programs there so that everyone can work on same thing. It is believed that open source applications are free and everyone can use it but here comes game changing move from microsoft they are trying to commercialize copilot!

The time ivested by billions of people in writing code for opensource just to help each other and to grow developer community will all be monetized, Microsoft wanted to make profit from these people!

So, i wanted to know what you guys think about this github copilot thing as many developers then would not be able to work on opensource as now and if microsoft commercialized github copilot and further github will this affect the developer community?

Javascript Shorts

Amrut — Thu, 08 Jul 2021 11:04:20 +0000

As a beginner, most of us are confused about usage of different kind of javascript in industry so here is a short insight of it...

Getting to know API's

Amrut — Mon, 28 Jun 2021 09:53:46 +0000

Getting to know API

API stands for application programming interface
An interface, that allows different systems to talk to each other without having to understand exactly what each other does

Type of API's

APIs can come in many forms or shapes
APIs, used for actions like turning on your camera and audio for joining a Zoom call
Or they can be web APIs, used for web-focused actions such as liking images on your Instagram or fetching the latest tweets.

How Api's are operated(in simple terms)

You usually make a request for information or data, and the API returns a response with what you requested.
.
.
.
.
For python code and for more easy explanation,you can refer to that in this following website.

https://www.onlinereader.me/2021/06/what-are-apis-what-is-their-history-how.html

Python for absolute beginners..

Amrut — Mon, 28 Jun 2021 04:41:28 +0000

What is python?

Python is a multipurpose programming language. We can use python everywhere and anywhere where there is use of data.

Python is very begineer friendly language, it means it does not have any particular syntax to work with, trust me its way easier than c++ or java .

What makes Python a beginner friendly language where as c++ and java not?

This is because python is dynamically typed where as others are not ...

to continue this story and to expect more from this topic from beginner to advance you can checkout this website, our team is working on best trending topic on this subject.

https://www.onlinereader.me/2021/06/basic-program-in-python.html