> I find it puzzling as well. Google heavily uses python, as do a number of other web companies.
Especially after Google invested engineers on Unladen Swallow, which fizzled out. I've read that Google likes to max out their servers to the point where OOM is not unlikely, so PyPy memory usage might not be worth the runtime performance gains.
More likely, google requires compatibility with its set of C extensions. At least when unladen swallow was announced, this was one of the major requirement. I would expect the problem to be similar in most large corporate environments.
Especially after Google invested engineers on Unladen Swallow, which fizzled out. I've read that Google likes to max out their servers to the point where OOM is not unlikely, so PyPy memory usage might not be worth the runtime performance gains.