DataPlayArena

python Practice Arena

Strengthen your python development skills with interactive coding challenges running entirely in WebAssembly.

Difficulty:
#1. Variable Swapping & Sum
Easy
Est. Time: 5 mins•
VariablesFundamentals
#2. Temperature Converter
Easy
Est. Time: 5 mins•
FundamentalsType Casting
#3. Palindrome Checker
Easy
Est. Time: 5 mins•
StringsFundamentals
#4. Count Vowels
Easy
Est. Time: 5 mins•
StringsLoops
#5. Sum of Positives
Easy
Est. Time: 5 mins•
ListsFundamentals
#6. Maximum Element
Easy
Est. Time: 5 mins•
ListsFundamentals
#7. List Filtering
Easy
Est. Time: 5 mins•
ListsComprehensions
#8. List Comprehensions
Easy
Est. Time: 5 mins•
ListsComprehensions
#9. Dictionary Frequency Counter
Easy
Est. Time: 8 mins•
DictionariesFundamentals
#10. String Formatting (f-strings)
Easy
Est. Time: 5 mins•
StringsFundamentals
#11. Merge Dictionaries
Easy
Est. Time: 8 mins•
DictionariesFundamentals
#12. Remove Duplicates preserving order
Easy
Est. Time: 5 mins•
ListsSets
#13. List Slicing
Easy
Est. Time: 5 mins•
ListsFundamentals
#14. Tuple Unpacking
Easy
Est. Time: 5 mins•
TuplesFundamentals
#15. Set Operations
Easy
Est. Time: 5 mins•
SetsFundamentals
#16. Enumerate & Zip
Easy
Est. Time: 8 mins•
ListsFundamentals
#17. Nested Dictionary Lookup
Easy
Est. Time: 8 mins•
DictionariesFundamentals
#18. Safe Division & Exception Handling
Easy
Est. Time: 5 mins•
FundamentalsExceptions
#19. Basic File Reading
Easy
Est. Time: 8 mins•
File I/OStrings
#20. Basic CSV Parsing
Easy
Est. Time: 8 mins•
StringsFile I/O
#21. OOP Class Encapsulation
Medium
Est. Time: 12 mins•
OOPClasses
#22. Timing logger Decorator
Medium
Est. Time: 15 mins•
DecoratorsFundamentals
#23. Generators
Medium
Est. Time: 12 mins•
GeneratorsFundamentals
#24. Custom Iterators
Medium
Est. Time: 12 mins•
IteratorsOOP
#25. Lambda Expressions
Medium
Est. Time: 10 mins•
LambdasSorting
#26. Collections.Counter
Medium
Est. Time: 8 mins•
LibrariesCollections
#27. collections.defaultdict
Medium
Est. Time: 10 mins•
LibrariesCollections
#28. collections.deque
Medium
Est. Time: 10 mins•
LibrariesCollections
#29. heapq
Medium
Est. Time: 10 mins•
LibrariesHeaps
#30. itertools
Medium
Est. Time: 12 mins•
LibrariesItertools
#31. functools.lru_cache
Medium
Est. Time: 15 mins•
LibrariesCache
#32. Regular Expressions
Medium
Est. Time: 12 mins•
LibrariesStrings
#33. JSON Parsing & Transformation
Medium
Est. Time: 10 mins•
JSONDictionaries
#34. CSV Processing
Medium
Est. Time: 12 mins•
File I/OFundamentals
#35. Data Validation
Medium
Est. Time: 10 mins•
ValidationFundamentals
#36. Nested Data Processing
Medium
Est. Time: 12 mins•
ListsLoops
#37. Pandas Data Filtering
Medium
Est. Time: 10 mins•
PandasLibraries
#38. Pandas GroupBy & Aggregation
Medium
Est. Time: 12 mins•
PandasLibraries
#39. NumPy Array Operations
Medium
Est. Time: 10 mins•
NumPyLibraries
#40. Log File Analysis
Medium
Est. Time: 12 mins•
StringsFile I/O
#41. Thread-Safe Queue
Hard
Est. Time: 18 mins•
ConcurrencyLocks
#42. LRU Cache Memory Store
Hard
Est. Time: 20 mins•
OOPDesign
#43. Producer–Consumer Pipeline
Hard
Est. Time: 18 mins•
ConcurrencyDesign
#44. Streaming Log Processor
Hard
Est. Time: 15 mins•
DesignCollections
#45. CSV → JSON ETL Pipeline
Hard
Est. Time: 15 mins•
JSONFile I/O
#46. Flatten Nested JSON
Hard
Est. Time: 15 mins•
JSONRecursion
#47. Chunked File Processing
Hard
Est. Time: 15 mins•
File I/OGenerators
#48. Trie / Prefix Search
Hard
Est. Time: 22 mins•
DesignAlgorithms
#49. Async API Data Collector
Hard
Est. Time: 18 mins•
AsyncConcurrency
#50. Mini ETL Workflow Simulation
Hard
Est. Time: 18 mins•
DesignFundamentals