Share Python code with CodeThis

What you get

• Python-aware syntax highlighting via CodeMirror
• Instant shareable link — no signup required
• Optional expiration (7 days, 30 days, permanent)
• Password protection for private pastes
• Works with the REST API and MCP server
• Rich markdown and MDC components alongside code

Common use cases for Python pastes

• Data analysis one-offs
• CLI and automation scripts
• Teaching examples and homework
• Bug reports and tracebacks

Example

from itertools import groupby

def run_length(seq):
    return [(k, sum(1 for _ in g)) for k, g in groupby(seq)]

print(run_length("aaabbc"))  # [('a', 3), ('b', 2), ('c', 1)]