Python Coding Practice - 1 (1 - 15 Questions)

Read each question carefully. Fill in missing code or select the correct option. Click Check to verify your answer.

Q1. Print Hello World.

print("")

Use exact text: Hello World.

Answer: Hello World.
Explanation: The print function outputs the string inside quotes.

Q2. Take name input from the user.

name = ("Enter name: ")
print(name)

Built-in function for user input is input().

Answer: input
Explanation: input(prompt) reads text from the user and returns it as a string.

Q3. Check if number is positive.

x = 10
x > 0:
  print("Positive")

Use the conditional keyword.

Answer: if
Explanation: if condition: executes the block when condition is True.

Q4. Print numbers from 1 to 5.

for i in (1, 6):
  print(i)

range(start, stop) excludes stop.

Answer: range
Explanation: range(1, 6) yields 1,2,3,4,5.

Q5. Which statement correctly prints the following pattern?

*
* *
* * *

for i in range(3): print( ? )

Answer: "* " * (i + 1)
Explanation: String multiplication repeats the pattern. We need 1, 2, 3 stars with spaces.

Q6. Print first character of string.

text = "Python"
print(text[])

Indexing is zero-based.

Answer: 0
Explanation: text[0] is 'P'.

Q7. Reverse the string using slicing.

text = "abc"
print(text[])

Use a negative step in the slice.

Answer: ::-1
Explanation: Full slice with step -1 reverses the string.

Q8. Add 40 to the list.

nums = [10, 20, 30]
nums.(40)

Use the method to add one element at the end.

Answer: append
Explanation: append adds a single item to the list.

Q9. Remove duplicates from list (keep as list).

lst = [1,2,2,3]
unique = (lst)

Convert to a set for uniqueness, then back to a list.

Answer: list(set(lst))
Explanation: set removes duplicates; list converts back to list (order not preserved).

Q10. Add value to set.

s = {1,2}
s.(3)

Use the method that inserts a single element into a set.

Answer: add
Explanation: add inserts one element; update expects an iterable.

Q11. Create dictionary with key "age".

student = {"name": "A", ____ : 20}

Answer: "age"
Explanation: Dictionary string keys must be quoted. Either double or single quotes are okay in Python, but we match the expected answer here.

Q12. Access value using key.

student = {"name": "A", "age": 20}
print(student[ ____ ])

Answer: "name"
Explanation: Use bracket access with the string key; dot access doesn't work for dicts.

Q13. Count characters using dictionary (safe access method).

freq[ch] = freq.(ch, 0) + 1

Method returns value if key exists, else default.

Answer: get
Explanation: get(ch, 0) avoids KeyError and provides default 0.

Q14. Loop through dictionary keys.

for k in student.(): print(k)

Method returns a view of keys.

Answer: keys
Explanation: keys() iterates over all dictionary keys.

Q15. Check membership efficiently.

my_set = {1, 2, 3, 4}
x = 3
if x in : print("Found")

Use a set for O(1) average-time membership tests.

Answer: my_set
Explanation: Sets provide fast membership checks compared to lists.

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