Alcott questions

• `__dict__` of classes in Python
• eof of istream in C++
• retrieve a `char *` returned from C function exported from .so in Python
• Why do variables live longer (have bigger scopes) in Python than in C?
• instance.__dict__ & class.__dict__
• different programming language and calling convention
• Select elements from an array using another array as index
• remove all duplicate records efficiently
• how to generate 1 million random integers and write them to a file?
• extract numbers from file names

Alcott answers