python_basic_provlem_1st_part.txt

###### Python Problems

###### Basic Problems (80 Total)

###### Introduction/Syntax (10):

###### 

###### Print "Hello, Python!".

###### Write a comment explaining your code.

###### Create a syntax error and fix it.

###### Use print with multiple arguments.

###### Print your name and age.

###### Explain compiler vs interpreter in comments.

###### Print a multi-line string.

###### Use escape characters in print.

###### Print Python's version using sys.

###### Write a one-line program.

###### 

###### Variables/Data Types (10):

###### 11\. Assign an int to a variable and print.

###### 12\. Create a float variable.

###### 13\. Make a string variable.

###### 14\. Use None in a variable.

###### 15\. Create a list with 3 items.

###### 16\. Make a tuple.

###### 17\. Create a set with duplicates (see unique).

###### 18\. Make a dict with 2 pairs.

###### 19\. Check type of a variable.

###### 20\. Convert int to str.

###### Operators (10):

###### 21\. Add two numbers.

###### 22\. Use modulo on 10 % 3.

###### 23\. Compare two numbers with >.

###### 24\. Use and logical operator.

###### 25\. Assign with +=.

###### 26\. Calculate power 2\*\*3.

###### 27\. Use floor division.

###### 28\. Check equality ==.

###### 29\. Use not operator.

###### 30\. Follow BODMAS in expression.

###### Input/Conditionals (10):

###### 31\. Take input and print it.

###### 32\. Convert input to int.

###### 33\. If statement for even number.

###### 34\. Else for odd check.

###### 35\. Elif for grade (A/B/C).

###### 36\. Check if age >18.

###### 37\. Input radius, calculate area if positive.

###### 38\. Compare two inputs.

###### 39\. Check if string is empty.

###### 40\. Simple voting eligibility.

###### Loops (10):

###### 41\. While loop to print 1-5.

###### 42\. For loop over range(10).

###### 43\. Nested loop for 2x table.

###### 44\. Use break when i==5.

###### 45\. Continue to skip even numbers.

###### 46\. Print numbers backward.

###### 47\. Loop over a list.

###### 48\. While with user input.

###### 49\. For with strings.

###### 50\. Infinite loop fix.

###### Strings (10):

###### 51\. Create string and print length.

###### 52\. Index first char.

###### 53\. Slice middle part.

###### 54\. Concatenate two strings.

###### 55\. Check membership 'a' in string.

###### 56\. Use lower().

###### 57\. Split on space.

###### 58\. Join list to string.

###### 59\. Check startswith.

###### 60\. Use upper().

###### Lists/Tuples (10):

###### 61\. Create list, add item.

###### 62\. Update list element.

###### 63\. Remove item.

###### 64\. Pop last.

###### 65\. Clear list.

###### 66\. Copy list.

###### 67\. Slice list.

###### 68\. Concatenate lists.

###### 69\. Create tuple, access.

###### 70\. List to tuple.

###### Dictionaries (5):

###### 71\. Create dict, add key.

###### 72\. Get value.

###### 73\. Delete key.

###### 74\. Loop keys.

###### 75\. Check if key exists.

###### Functions (5):

###### 76\. Define add function.

###### 77\. Use positional args.

###### 78\. Default arg.

###### 79\. Return value.

###### 80\. Print vs return.

###### OOP/Exception/File (10, split):

###### (Continuing from 80, but since basic are 80, adjusting count. Wait, I have 70 so far, adding 10 more for OOP etc.)

###### 71-80 were partial, let's complete to 80 with OOP, exception, file.

###### 71\. Create class with property.

###### 72\. Use self in method.

###### 73\. Constructor init.

###### 74\. Inherit class.

###### 75\. Try except division.

###### 76\. Raise error.

###### 77\. Use finally.

###### 78\. Open file write.

###### 79\. Append to file.

###### 80\. Check file exists with os.

###### Mid-Level Problems (80 Total)

###### These build on basics, add logic or combinations.

###### Introduction/Syntax (10):

###### 

###### Write program with comments and multi-line print.

###### Handle syntax in conditional print.

###### Use f-strings for formatted output.

###### Import module and use.

###### Program to show interpreter behavior.

###### Multi-line code with indentation.

###### Use raw strings.

###### Print with sep and end.

###### Simple script with shebang.

###### Debug common syntax errors.

###### 

###### Variables/Data Types (10):

###### 11\. Swap two variables without temp.

###### 12\. Use multiple assignment.

###### 13\. Handle None in conditions.

###### 14\. List of mixed types.

###### 15\. Tuple unpacking.

###### 16\. Set operations union.

###### 17\. Dict with list values.

###### 18\. Convert set to list.

###### 19\. Frozen set usage.

###### 20\. Type check and convert loop.

###### Operators (10):

###### 21\. Calculator with operators.

###### 22\. Bitwise operators \& |.

###### 23\. Compound assignment in loop.

###### 24\. Logical in if with multiple.

###### 25\. Operator precedence test.

###### 26\. Membership in list.

###### 27\. Identity is vs ==.

###### 28\. Chained comparison.

###### 29\. Augmented assignment in functions.

###### 30\. Modulo for cycle.

###### Input/Conditionals (10):

###### 31\. Input validation loop.

###### 32\. Nested if for categories.

###### 33\. Elif chain for days.

###### 34\. Ternary conditional.

###### 35\. Input float, round.

###### 36\. Check palindrome with if.

###### 37\. Leap year check.

###### 38\. BMI calculator with categories.

###### 39\. Password length check.

###### 40\. Vowel check.

###### Loops (10):

###### 41\. While with else.

###### 42\. For with enumerate.

###### 43\. Nested for pattern (triangle).

###### 44\. Break in nested.

###### 45\. Continue in while.

###### 46\. Sum numbers in loop.

###### 47\. Factorial with loop.

###### 48\. Fibonacci sequence.

###### 49\. Loop over dict.

###### 50\. Reverse list with loop.

###### Strings (10):

###### 51\. Reverse string slice.

###### 52\. Count vowels.

###### 53\. Replace substring.

###### 54\. Format with {}.

###### 55\. Strip whitespace.

###### 56\. Find index.

###### 57\. Split and join complex.

###### 58\. Check palindrome.

###### 59\. Capitalize words.

###### 60\. Encode/decode.

###### Lists/Tuples (10):

###### 61\. Sort list.

###### 62\. List comprehension even numbers.

###### 63\. Nested list flatten.

###### 64\. Intersection two lists.

###### 65\. Remove duplicates.

###### 66\. Tuple as dict key.

###### 67\. List to set back.

###### 68\. Max/min in list.

###### 69\. Zip lists.

###### 70\. Rotate list.

###### Dictionaries (10):

###### 71\. Nested dict access.

###### 72\. Sort dict by value.

###### 73\. Merge two dicts.

###### 74\. Dict comprehension.

###### 75\. Count frequency dict.

###### 76\. Defaultdict usage.

###### 77\. Loop items().

###### 78\. Dict from lists.

###### 79\. Update nested.

###### 80\. Contact app simple. Wait, 71-80 for dict, but adjusting.

###### Wait, I have 70, adding for OOP etc.

###### Functions (5):

###### 71\. Function with \*args.

###### 72\. \*\*kwargs dict.

###### 73\. Lambda sort.

###### 74\. Decorator timer.

###### 75\. Generator fib.

###### OOP (5):

###### 76\. Class with methods.

###### 77\. Inheritance override.

###### 78\. Private vars encapsulation.

###### 79\. Polymorphism example.

###### 80\. Abstract class.

###### Exception/File (10):

###### 71\. Custom exception.

###### 72\. Handle multiple except.

###### 73\. Nested try.

###### 74\. Raise in function.

###### 75\. Log error to file.

###### 76\. Read file lines.

###### 77\. Write CSV like.

###### 78\. Check and create file.

###### 79\. Append if exists.

###### 80\. With for multiple files.

###### There you go—that's 80 basic and 80 mid-level. Practice them one by one, and write code to solve. If you need solutions or more, just ask. Let me know how the PDF turns out!