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Python Time & Space Complexity

Compileall

compileall Module¶

The compileall module compiles all Python source files in a directory tree to bytecode (.pyc files).

Complexity Reference¶

Operation	Time	Space	Notes
`compile_dir()`	O(n)	O(n)	n = .py files
Compile file	O(m)	O(m)	m = file size

Batch Compiling Python Files¶

Compile Directory¶

import compileall

# Compile directory tree - O(n)
compileall.compile_dir('/path/to/code')

# With options
compileall.compile_dir(
    '/path/to/code',
    force=True,        # Recompile all
    quiet=0            # Show progress
)

# Or from command line:
# python -m compileall /path/to/code

Compile Single File¶

import py_compile

# Compile one file - O(m)
py_compile.compile('myfile.py')