Improvements

• add bytes addition and slice support
• improve FileIO and add more methods such as seek() and tell(). See https://pocketpy.dev/modules/io/
• add __missing__ for dict and refactor defaultdict
• add bit_length method to int #233
• improve performance of for loop
• adoping a more efficient division algorithm for bigint #232
• make float always 64-bit; optimize for empty function
• add vec.__getitem__; add pkpy_set_main_argv to set sys.argv
• add reduce and partial for functools module
• refactor random module to use builtin mt19937 implementation

New Features

• add enum module. See https://pocketpy.dev/modules/enum/
• support precompiling. See https://pocketpy.dev/features/precompile/
• add itertools module. See https://pocketpy.dev/modules/itertools/
• support PDB debugging. See https://pocketpy.dev/features/debugging/

Bug fixes

• check the size of fillchar passed to str methods (ljust, rjust) #236
• perform boundary check before searching to prevent security vulnerabilities #237

Full Changelog: v1.4.3...v1.4.5