Python - Zero to Hero

Author: nagarajsv3

.idea/vcs.xml

@@ -1 +1,10 @@
 "# python-learnings" 
+
+Errors :
+ValueError
+NameError
+FileNotFoundError
+
+
+Static Code Analysis:
+pylint myexample.py -r y

README.md

@@ -0,0 +1,17 @@
+import unittest
+import cap
+
+class Testcap(unittest.TestCase):
+
+    def test_one_word(self):
+        inp = 'python'
+        res = cap.cap_text(inp)
+        self.assertEqual(res, 'Python')
+
+    def test_multiple_words(self):
+        inp = 'welcome to python'
+        res = cap.cap_text(inp)
+        self.assertEqual(res, 'Welcome To Python')
+
+if __name__ == '__main__':
+    unittest.main()

TestCap.py

@@ -34,3 +34,14 @@
 age = input("Enter age: ")
 print("Your name is "+ name + " of age "+ age)
 
+a=10
+print(type(a))
+
+a=10.2
+print(type(a))
+
+my_income=100
+tax_rate=0.1
+my_taxes= my_income * tax_rate
+print(my_taxes)
+

__pycache__/cap.cpython-312.pyc

@@ -0,0 +1,13 @@
+True
+False
+print(True)
+print(type(True))
+#print(true) NameError: name 'true' is not defined. Did you mean: 'True'?
+
+print(2 > 1)
+print(1 == 1)
+print(2 < 1)
+
+print("*"*21)
+a=None
+print(a)

arithmeticex.py

@@ -0,0 +1,5 @@
+def cap_text(input : str):
+    return input.title()
+
+print("hi".capitalize())
+print("monty hi".capitalize())

booleanex.py

@@ -0,0 +1,36 @@
+print(2 == 2)
+print(2 == 3)
+print(2 == 2.0)
+print('*'*21)
+print(2 != 2)
+print(2 != 3)
+print('*'*21)
+print(3>2)
+print(1>2)
+print(2>2)
+print('*'*21)
+print(3<2)
+print(1<2)
+print(2<2)
+print('*'*21)
+print(3>=2)
+print(1>=2)
+print(2>=2)
+print('*'*21)
+print(3<=2)
+print(1<=2)
+print(2<=2)
+print('*'*21)
+
+print( 1==1 and 2==2)
+print( 1==1 and 1==2)
+print( 1==2 and 2==2)
+print (1==2 and 2==1)
+print('*'*21)
+print( 1==1 or 2==2)
+print( 1==1 or 1==2)
+print( 1==2 or 2==2)
+print (1==2 or 2==1)
+print('*'*21)
+print(not 1==1)
+print(not 1==2)

cap.py

@@ -0,0 +1,29 @@
+nums = [1,2,3,4]
+
+for num in nums:
+    pass #Do nothing
+
+for num in nums:
+    if num==2:
+        continue
+    print(num)
+
+word = "Hello World"
+for letter in word:
+    if letter == 'l':
+        continue
+    print(letter)
+
+print("*"*21)
+word = "Hello World"
+for letter in word:
+    if letter == 'l':
+        break
+    print(letter)
+
+x=0
+while x < 100 :
+    if x ==4:
+        break 
+    print(x)
+    x +=1

comparisionopex.py

@@ -0,0 +1,22 @@
+my_dict = {'key1':'value1', 'key2':'value2'}
+print(my_dict)
+print(my_dict["key1"])
+print(my_dict["key2"])
+
+my_dict = {'key1' : 'value1' , 'letterlist' : ['a','b','c'], 'nesteddict' : {'apple': 2.99, 'banana' : 1.99, 'milk':3.99}}
+letter = 'c'
+print(letter.upper())
+print(my_dict['letterlist'][2].upper())
+print(my_dict['nesteddict']['apple'])
+print(my_dict['nesteddict']['milk'])
+
+dic = {'k1':100, 'k2':200}
+dic['k3'] = 300
+print(dic)
+dic['k2'] = 2000
+print(dic)
+
+print(dic.keys())
+print(dic.values())
+print(dic.items())
+

continuebreakpassex.py

@@ -0,0 +1,42 @@
+nums = [1,2,3,4,5,6,7,8,9,10]
+
+for num in nums:
+    if num%2==0:
+        print(num)
+    else:
+        print(f"odd num:{num}")
+
+print("*"*21)
+list_sum=0
+for num in nums:
+    list_sum = list_sum + num
+print(list_sum)
+
+print("*"*21)
+word="Hello World"
+for letter in word:
+    print(letter)
+
+print("*"*21)
+tupnum = (1,2,3)
+for num in tupnum:
+    print(num)
+print("*"*21)
+##tuple unpacking
+my_list = [(1, 2, 3), (4, 5, 6), (7, 8, 9)]
+for a, b, c in my_list:
+    print(a)
+    print(b)
+    print(c)
+
+print("*"*21)
+my_dict= {'k1':1, 'k2':2, 'k3':3}
+for item in my_dict:
+    print(item)
+for item in my_dict.items():
+    print(item)
+for key,value in my_dict.items():
+    print(key)
+    print(value)
+for value in my_dict.values():
+    print(value)

dictionaryex2.py

@@ -0,0 +1,15 @@
+hungry=False
+if hungry:
+    print("Dog is hungry")
+else:
+    print("Dog is not hungry")
+
+name="John"
+if name == "Naga":
+    print("Naga is a programmer")
+elif name == "Ash":
+    print("Ash is an artist")
+elif name == "Dhoni":
+    print("Dhoni is a cricketer")
+else:
+    print("Who are you?")

forex2.py

@@ -0,0 +1,42 @@
+my_file = open("myfile.txt")
+#open("unknownfile.txt") #FileNotFoundError: [Errno 2] No such file or directory: 'unknownfile.txt'
+
+print(my_file.read())
+print("*"*21)
+print(my_file.read())
+print("*"*21)
+my_file.seek(0)
+print(my_file.read())
+
+my_file.seek(0)
+contents = my_file.read()
+print(contents)
+print("*"*21)
+
+my_file.seek(0)
+
+print(my_file.readlines())
+my_file.close()
+print("*"*21)
+
+with open('myfile.txt') as my_file2:
+    content2 = my_file2.readlines()
+
+print(content2)
+
+with open('myfile.txt', mode='r') as f:
+    print(f.readlines())
+
+with open('myfile2.txt', mode='w') as f:
+    print(f.write("New file got created"))
+
+with open('myfile2.txt', mode='a') as f:
+    print(f.write("\n2nd line"))
+    print(f.write("\n3rd line"))
+
+print("*"*21)
+with open('myfile2.txt', mode='r+') as f:
+    print(f.readlines())
+
+
+

ifelifelseex.py

@@ -0,0 +1,57 @@
+my_list = [1,2,3]
+print(my_list)
+
+my_list = ["one", 2, 3.0, False]
+print(my_list)
+
+my_list = [1, 2, 3]
+
+another_list = [4, 5, 6]
+
+#Combine lists / concatenate lists
+comb_list = my_list + another_list
+print(comb_list)
+
+#indexing
+my_list = [1, 2, 3, 4, 5, 6, 7, 8, 9]
+print(my_list[0])
+print(my_list[1])
+
+#slicing
+print(my_list[2:7])
+print(my_list[2:7:2])
+
+#mutate list
+my_list[0] = 99
+print(my_list)
+
+#len
+print(len(my_list))
+
+my_list.append(10)
+my_list.append(11)
+print(my_list)
+
+popped_item = my_list.pop()
+print(popped_item)
+print(my_list)
+
+popped_item = my_list.pop(0)
+print(popped_item)
+print(my_list)
+
+#sort() - modifies list inplace. No return type
+my_list = ["a", "e", "b", "x", "c"]
+#sorted_list = my_list.sort() #Wrong
+my_list.sort()
+print(my_list)
+print("*"*21)
+
+num_list = [10, 2, 99, 1, 5, 3, 0, 104]
+print(num_list)
+num_list.sort()
+print(num_list)
+
+#reverse() - reverses the list inplace. No return type
+num_list.reverse()
+print(num_list)

iofileex.py

@@ -0,0 +1,3 @@
+This is my file.
+This is second line.
+Oh we are already on Line 3.

listex2.py

@@ -0,0 +1,3 @@
+New file got created
+2nd line
+3rd line

myfile.txt

@@ -0,0 +1,14 @@
+'''
+Sample Python Script
+'''
+
+'''
+Sample function
+'''
+def my_func():
+    num1=1
+    num2=2
+    print(num1)
+    print(num2)
+
+my_func()

myfile2.txt

@@ -0,0 +1,19 @@
+print("World {} {}".format("is","beautiful"))
+print("world {0} {1} .{2} {3}".format("is","beautiful","go","live"))
+print("{name} {i} {b}.{g} {l}".format(name="world", i="is", g="go", l="live", b="beautiful"))
+
+#Float Formatting
+rval=0.125364792
+print("r value is {r:1.2f}".format(r=rval))
+
+rval = 100.29083121212
+print("r val is {r:1.2f}".format(r=rval))
+
+#Formatted String Literals
+hero="Krishna"
+villain="Shakuni"
+print(f"Mahabharata was driven by {hero} and {villain}")
+
+nation="India"
+year="2011"
+print(f"Team {nation} won world cup in {year}")

mysample.py

@@ -0,0 +1,16 @@
+my_set = set()
+print(my_set)
+print(type(my_set))
+
+my_set.add(1)
+my_set.add("Hi")
+my_set.add(2)
+print(my_set)
+my_set.add(2)
+print(my_set)
+
+my_list = [1,2,1,1,1,1,1,2,2,2,2,3,3,3,3,3]
+my_set = set(my_list)
+print(my_set)
+
+print(set("mississippi"))