Python posts from the former Claude Explains blog

Table of Contents

1. Basic Python Operations (16 articles)

2. String Manipulation (22 articles)

3. Lists and Arrays (26 articles)

4. Dictionaries (9 articles)

5. Sets and Tuples (3 articles)

6. File Operations (8 articles)

7. Mathematical Operations (22 articles)

8. Control Flow (4 articles)

9. Functions and Variables (6 articles)

10. Input and Output (3 articles)

11. Data Type Conversion (4 articles)

12. Environment and Directory Operations (6 articles)

Basic Python Operations

1. How to print in Python

2. How to comment in Python

3. How to use 'if' in Python

4. How to use 'elif' in Python

5. How to use 'and' in Python

6. How to use 'or' in Python

7. How to use 'break' in Python

8. How to use booleans in Python

9. How to write not equal to in Python

10. How to end a program in Python

11. How to sleep in Python

12. How to loop in Python

13. How to use a while loop in Python

14. How to repeat something in Python

15. How to use range() in Python

16. How to use enumerate() in Python

String Manipulation

17. How to convert a string to a list in Python

18. How to convert a list to a string in Python

19. How to use upper() in Python

20. How to lowercase a string in Python

21. How to capitalize the first letter in Python

22. How to print the ASCII value in Python

23. How to find the length of a string in Python

24. How to concatenate strings in Python

25. How to append to a string in Python

26. How to remove spaces from a string in Python

27. How to remove a character from a string in Python

28. How to replace a character in a string in Python

29. How to remove non-alphanumeric characters in Python

30. How to reverse a string in Python

31. How to split a string in Python

32. How to slice a string in Python

33. How to sort a string in Python

34. How to use f-strings in Python

35. How to print a new line in Python

36. How to skip a line in Python

37. How to print on the same line in Python

38. How to use join() in Python

Lists and Arrays

39. How to make a list in Python

40. How to initialize a list in Python

41. How to create an empty list in Python

42. How to add to a list in Python

43. How to get the last element of a list in Python

44. How to find the length of a list in Python

45. How to find the length of an array in Python

46. How to remove an item from a list in Python

47. How to use pop() in Python

48. How to clear a list in Python

49. How to print a list in Python

50. How to print a matrix in Python

51. How to merge two lists in Python

52. How to copy a list in Python

53. How to reverse a list in Python

54. How to shuffle a list in Python

55. How to sort a list in Python

56. How to sort a list alphabetically in Python

57. How to slice a list in Python

58. How to split a list in Python

59. How to sum a list in Python

60. How to remove duplicates from a list in Python

61. How to iterate through a list in Python

62. How to take a list as input in Python

63. How to create an array in Python

64. How to initialize an array in Python

Dictionaries

65. How to create a dictionary in Python

66. How to initialize a dictionary in Python

67. How to access a dictionary in Python

68. How to add a key value pair to a dictionary in Python

69. How to append to a dictionary in Python

70. How to print a dictionary in Python

71. How to loop through a dictionary in Python

72. How to compare two dictionaries in Python

73. How to sort a dictionary in Python

Sets and Tuples

74. How to make a set in Python

75. How to initialize a set in Python

76. How to create a tuple in Python

File Operations

77. How to check if a file exists in Python

78. How to create a file in Python

79. How to delete a file in Python

80. How to open a file in Python

81. How to read a text file in Python

82. How to read a CSV file in Python

83. How to read an Excel file in Python

84. How to write to a file in Python

Mathematical Operations

85. How to do math in Python

86. How to subtract in Python

87. How to multiply in Python

88. How to divide in Python

89. How to use modulo in Python

90. How to do exponents in Python

91. How to do square root in Python

92. How to square a number in Python

93. How to do absolute value in Python

94. How to use 'e' in Python

95. How to use pi in Python

96. How to increment a variable in Python

97. How to find the average in Python

98. How to calculate a percentage in Python

99. How to find the factorial of a number in Python

100. How to find prime numbers in Python

101. How to round down in Python

102. How to round up in Python

103. How to round to 2 decimal places in Python

104. How to limit decimal places in Python

105. How to reverse a number in Python

106. How to generate random numbers in Python

Control Flow

107. How to use lambda in Python

108. How to use 'return' in Python

109. How to return multiple values in Python

110. How to write an algorithm in Python

Functions and Variables

111. How to create a function in Python

112. How to create a class in Python

113. How to define a variable in Python

114. How to define a global variable in Python

115. How to print a variable in Python

116. How to use len() in Python

Input and Output

117. How to take input in Python

118. How to take integer input in Python

119. How to get the current time in Python

Data Type Conversion

120. How to convert a string to a float in Python

121. How to convert an int to a string in Python

122. How to convert a float to an int in Python

123. How to cast data types in Python

Environment and Directory Operations

124. How to change the working directory in Python

125. How to change the directory in Python

126. How to get the current working directory in Python

127. How to clear the screen in Python

128. How to use environment variables in Python

129. How to create a dataframe in Python

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