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Author: Supercool-Coder

4_Raise error example 2.py

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+class Mobile:
+    def __init__(self,name):
+        self.name = name
+
+class Mobilestore:
+    def __init__(self):
+        self.mobiles = []
+
+    def add_mobile(self,new_mobile):
+        if isinstance(new_mobile,Mobile):
+            self.mobiles.append(new_mobile)
+        else:
+            raise TypeError('New mobile should be object of mobile class')
+
+oneplus = Mobile('One plus 6')
+samsung = 'Samsung galaxy M31'
+mobostore = Mobilestore()
+# print(mobostore.mobiles)
+
+mobostore.add_mobile(oneplus)
+mobo_phones = mobostore.mobiles
+print(mobo_phones[0].name)

Chapter 18/1_Read text and files.py

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+# Methods ---> Read file , Open file , Read method , Seek method , Tell method , Read line , Read lines , Close method
+
+# Read file
+
+
+# Open function
+
+
+# Read method
+# Ye method hamare cursor ki positon ko change krta hai
+
+# Seek method
+# Ye method hamare file ko phir se read krta hai aur cursor ki position ko change bhi krta hai
+
+# Tell method
+# Ye method hamare cursor k position ko batata hai
+
+
+# Readline method
+# Ye method hamare file k ek baar mein ek hi line read krta hai
+
+# Readlines method
+# Ye method hamare file k sare line ko ek list me add kr dega aur hum jitni lines chahte hai utni lines ko read kr skte
+# hai iss method k use kr k.
+
+# Close method
+
+f = open('file.txt')
+# print(f'cursor position - {f.tell()}')
+#
+# print(f.read())
+# print(f'cursor position - {f.tell()}')
+# print('Before seek method :- ')
+# f.seek(0)
+# print('After seek method :- ')
+# print(f'cursor position - {f.tell()}')
+# print(f.read())
+# f.close()
+
+
+# Readline method
+
+
+# f = open('file.txt')
+#
+# print(f.readline())
+# print(f.readline())
+# print(f.readline())
+# print(f.readline())
+
+
+# Readlines method
+
+# lines = f.readlines()
+# print(len(lines))
+# for line in lines:
+#     print(line , end='')
+
+# Close method
+print(f.closed)
+f.close()

Chapter 18/2_With blocks.py

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+with open('file.txt') as f:
+    data = f.read()
+    print(data)
+
+print(f.closed)

Chapter 18/3_write to file.py

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+# Aagr humko apne file k aandr kuch likhna hai toh uske liye hum ---> w , a , r+ ye theeno mode use kr skte hai.
+
+# w mode ---> w mode k use tab kiya jata hai jab file empty hoti hai
+# with open('file1.txt','w') as f:
+#     f.write('Hello ! Uttam sir how are welcom to my hotel sir.')
+
+
+# a mode ---> a mode tab use krte jab jab humko hamare file k data mein kuch add krna hota hai.
+# with open('file1.txt','a') as f:
+#     f.write('\nHello ! Uttam sir how are welcom to my hotel sir.')
+
+# r+ mode ---> r+ mode k use kr k hum apne file ko read bhi kr skte hai aur write bhi kr skte hai.
+with open('file1.txt','r+') as f:
+    f.seek(len(f.read()))
+    f.write('\nHello ! Uttam sir how are welcom to my hotel sir.')

Chapter 18/4_Read and write.py

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+with open('file2.txt', 'r') as rf:
+    with open('file1.txt' , 'w') as wf:
+        wf.write(rf.read())

Chapter 18/5_Exercise 1.py

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+# Uttam,500
+# Dinesh,50
+# Ankit,200
+# Anurag,100
+with open('salary.txt','r') as rf:
+    with open('output.txt','a') as wf:
+        for line in rf.readlines():
+            name,salary = line.split(',')
+            wf.write(f'{name}\'s salary is {salary} ')

Chapter 18/6_Exercise 2.py

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+# with open('6_Exercise.html','r') as webpage:
+#     with open('output1.txt','a') as wf:
+#         for line in webpage.readlines():
+#             if '<a href=' in line:
+#                 pos = line.find('<a href=')
+#                 first_quote = line.find('\"',pos)
+#                 second_quote = line.find('\"',first_quote+1)
+#                 url = line[first_quote+1:second_quote]
+#                 wf.write(url + '\n')
+
+
+# Better soluation to extract link in html files
+with open('6_Exercise.html','r') as webpage:
+    with open('output.txt','a') as wf:
+        page = webpage.read()
+        link_exist = True
+        while link_exist:
+            pos = page.find('<a href=')
+            if pos == -1:
+                link_exist = False
+
+            else:
+                first_quote = page.find('\"', pos)
+                second_quote = page.find('\"',first_quote+1)
+                url = page[first_quote+1:second_quote]
+                wf.write(url + '\n')
+                page = page[second_quote:]
+

Chapter 18/6_Exercise.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8" />
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <title>Page Title</title>
+    <meta name="viewport" content="width=device-width,intial-scale=1">
+    <link rel="stylesheet" type="text/css" media="screen" href="main.css" />
+    <script src="main.js"><</script>
+</head>
+<body>
+<h1>hi there I'm Uttam Singh</h1>
+<a href="www.w3school.com">click to open w3school</a><a href="www.hackerearth.com">click here to open hackerank</a>
+<a href="www.Totrialspoint.com">click to open totrialspoint</a>
+<a href="www.geeksforgeeks">click to open geeksforgeeks</a>
+</body>
+</html>

Chapter 18/7_Read love story with python.py

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+with open()

Chapter 18/Exercise 1 file.txt

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+Uttam salary 500

Chapter 18/file.txt

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+This is a very important programming language for your software engineer career.
+
+so workhard and give your best to complete your graduation and build your
+knowlege
+
+Important things to remember.
+Never do somethig to impress someone.
+Never live your life on someone else opinions.
+Just find whatever you love and then hustle untill you don't need to introduce yourself.

Chapter 18/file1.txt

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+i don't want to give my intro because i will make me better than every one.

Chapter 18/file2.txt

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+i don't want to give my intro because i will make me better than every one.

Chapter 18/file_2.txt

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+Hello ! Uttam sir how are welcom to my hotel sir.

Chapter 19/Read and write csv files.py

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+from csv import DictReader, DictWriter
+with open('file.csv','r') as rf:
+    with open('file1.csv','w') as wf:
+        csv_reader = DictReader(rf)
+        csv_writer = DictWriter(wf,fieldnames=['first_name','last_name','age'])
+        csv_writer.writeheader()
+        for row in csv_reader:
+            fname, lname, age = row['firstname'],row['lastname'],row['age']
+            csv_writer.writerow({
+                'first_name': fname.upper(),
+                'last_name': lname.upper(),
+                'age' : age
+            })

Chapter 19/Read csv with DictReader.py

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+from csv import DictReader
+
+# Ordered dict
+with open('file.csv','r') as f:
+    csv_reader = DictReader(f)
+    for row in csv_reader:
+        print(row['name'])

Chapter 19/csv DictWriter.py

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+import csv
+from csv import DictWriter
+
+with open('final.csv','w',newline='') as f:
+    csv_writer = DictWriter(f,fieldnames=['firstname','lastname','age'])
+
+    # writerow , writerows
+    csv_writer.writerow({
+        'firstname': 'Uttam',
+        'lastname': 'Singh',
+        'age':20
+    })
+    csv_writer.writerow({
+        'firstname':'Shraddha',
+        'lastname':'singh',
+        'age':20
+    })
+
+    # Writer -----> [dict , dict , dict]
+    csv_writer.writerows([
+        {'firstname':'Uttam','lastname':'Singh','age':20},
+        {'firstname':'shraddha','lastname':'Singh', 'age':20}
+    ])

Chapter 19/csvwriter.py

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+# Writer , DictWriter
+from csv import writer
+
+with open('file.csv1','w',newline='') as f:
+    csv_writer = writer(f)
+
+    # methods --> writerow and writerows
+    # csv_writer.writerow(['name','country'])
+    # csv_writer.writerow(['Uttam','INDIA'])
+    # csv_writer.writerow(['Shraddha','INDIA'])
+
+
+    csv_writer.writerows([['Name','Country','Phone'],['Uttam','INDIA','9670064455'],['Shraddha','INDIA','8423854856']])

Chapter 19/file.csv

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+name,uttam,Phone
+email,uttampbh123@gmail.com,+91 9670064455
+contact,+91 7710843691,+91 9670064455

Chapter 19/file.csv1

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+Name,Countery,Phone
+Uttam,INDIA,9670064455
+Shraddha,INDIA,8423854856

Chapter 19/file1.csv

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+first_name,last_name,age

Chapter 19/final.csv

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+Uttam,Singh,20
+Shraddha,singh,20
+Uttam,Singh,20
+shraddha,Singh,20

Chapter 19/readcsv.py

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+from csv import reader
+
+with open('file.csv', 'r') as f:
+    csv_reader = reader(f)
+    # iteration
+    # print(csv_reader)
+    # next(csv_reader)
+    for row in csv_reader:
+        print(row)

GUI Application/GUI Application.py

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+# tee-kinter , Tk-inter , kinter
+
+# Starter code
+import tkinter as tk
+from tkinter import ttk
+
+
+window = tk.Tk()
+window.title('GUI Application')
+
+# Create labels
+name_label = ttk.Label(window, text='Enter the name :- ')
+name_label.grid(row=0, column=0, sticky=tk.W)
+
+age_label = ttk.Label(window, text='Age :- ')
+age_label.grid(row=1, column=0, sticky=tk.W)
+
+email_label = ttk.Label(window, text='Enter your email id:- ')
+email_label.grid(row=2, column=0, sticky=tk.W)
+
+gender_label = ttk.Label(window, text='Select your gender:- ')
+gender_label.grid(row=3, column=0, sticky=tk.W)
+
+# Creating entry box for each label
+name_variable = tk.StringVar()
+name_entrybox = ttk.Entry(window, width=16, textvariable=name_variable)
+name_entrybox.grid(row=0, column=1)
+name_entrybox.focus()
+
+age_variable = tk.StringVar()
+age_entrybox = ttk.Entry(window, width=16, textvariable=age_variable)
+age_entrybox.grid(row=1, column=1)
+
+email_variable = tk.StringVar()
+email_entrybox = ttk.Entry(window, width=16, textvariable=email_variable)
+email_entrybox.grid(row=2, column=1)
+
+# gender_variable = tk.StringVar()
+# gender_entrybox = ttk.Entry(window,width=16,textvariable=gender_variable)
+# gender_entrybox.grid(row=3,column=1)
+
+# Create combobox
+gender_variable = tk.StringVar()
+gender_combobox = ttk.Combobox(window, width=14, textvariable=gender_variable, state='readonly')
+gender_combobox['values'] = ('Male', 'Female', 'Transgender like Dinesh')
+gender_combobox.current(0)
+gender_combobox.grid(row=3, column=1)
+
+# Creating radio button
+usertype = tk.StringVar()
+radio_button1 = ttk.Radiobutton(window, text='Student', value='Student', variable=usertype)
+radio_button1.grid(row=4, column=0)
+
+radio_button2 = ttk.Radiobutton(window, text='Teacher', value='Teacher', variable=usertype)
+radio_button2.grid(row=4, column=1)
+
+# Create check button
+
+checkbutton = tk.IntVar()
+check_button = ttk.Checkbutton(window, text='Check if you want to subscribe our channel', variable=checkbutton)
+check_button.grid(row=5, columnspan=3)
+
+# Create Button
+
+def action():
+
+    username = name_variable.get()
+    userage = age_variable.get()
+    user_email = email_variable.get()
+
+    print(f'{username} is  {userage} years old, {user_email}')
+
+    user_gender = gender_variable.get()
+    user_type = usertype.get()
+    if checkbutton.get() == 0:
+        subscribed = 'No'
+    else:
+        subscribed = 'Yes'
+        print(user_gender,user_type,subscribed)
+
+    with open('file.txt', 'a') as f:
+        f.write(f'{username}{userage}{user_email}{user_gender}{usertype}{subscribed}\n')
+
+    name_entrybox.delete(0,tk.END)
+    age_entrybox.delete(0,tk.END)
+    email_entrybox.delete(0,tk.END)
+
+    name_label.configure(foreground='#b388ff')
+
+    submit_button.configure(foreground='Blue')
+
+submit_button = tk.Button(window,text='Submit' , command=action)
+submit_button.grid(row=6,column=0)
+
+
+
+
+
+'''Aagar hum mainloop() nhi likhenge toh hamara window turant chalu ho k bnd ho jayega iss liye hum mainloop k use kr
+ rahe hai ki hamara window user bnd kre tb hi bnd ho......'''
+
+window.mainloop()