Why do crawlers use python?

Why crawlers use python:

Because crawlers written in python have many advantages:

1. Various crawler frameworks, convenient and efficient downloading of web pages;

2. Multi-threading and process models are mature and stable. Crawlers are a typical multi-tasking scenario, and there will be a long delay when requesting pages. Overall it's more of a wait. Multi-threading or processes will optimize program efficiency and improve the downloading and analysis capabilities of the entire system.

3. GAE support. When I first wrote the crawler, GAE had just emerged, and it only supported Python. The crawler created using GAE was almost free. At most, I had nearly a thousand application instances at work.

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