Issue 1:
Moviepy does not appear to be officially supported by Pypy, but its slow execution time is motivating me to wade through the errors and attempt to hack a solution together. Right now I am getting this error from this code on this version:

[PyPy 7.3.1 with GCC 7.3.1 20180303 (Red Hat 7.3.1-5)] on linux
Type "help", "copyright", "credits" or "license" for more information.

from moviepy.editor import *

clip = VideoFileClip("vid_file")

clip.write_videofile('test.mp4', threads=4, logger=None)

Traceback (most recent call last):
File "/home/matt/Documents/pyth-test-env/pypy3/site-packages/numpy/core/__init__.py", line 24, in <module>
from . import multiarray
File "/home/matt/Documents/pyth-test-env/pypy3/site-packages/numpy/core/multiarray.py", line 14, in <module>
from . import overrides
File "/home/matt/Documents/pyth-test-env/pypy3/site-packages/numpy/core/overrides.py", line 7, in <module>
from numpy.core._multiarray_umath import (
ImportError: /snap/core/current/lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.29' not found (required by /home/matt/Documents/pyth-test-env/pypy3/site-packages/numpy/core/_multiarray_umath.pypy36-pp73-x86_64-linux-gnu.so)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "thread_test.py", line 1, in <module>
from moviepy.editor import *
File "/home/matt/Documents/pyth-test-env/pypy3/site-packages/moviepy/editor.py", line 24, in <module>
import imageio
File "/home/matt/Documents/pyth-test-env/pypy3/site-packages/imageio/__init__.py", line 22, in <module>
from .core import FormatManager, RETURN_BYTES
File "/home/matt/Documents/pyth-test-env/pypy3/site-packages/imageio/core/__init__.py", line 10, in <module>
from .util import Image, Array, Dict, asarray, image_as_uint, urlopen
File "/home/matt/Documents/pyth-test-env/pypy3/site-packages/imageio/core/util.py", line 19, in <module>
import numpy as np
File "/home/matt/Documents/pyth-test-env/pypy3/site-packages/numpy/__init__.py", line 142, in <module>
from . import core
File "/home/matt/Documents/pyth-test-env/pypy3/site-packages/numpy/core/__init__.py", line 54, in <module>
raise ImportError(msg)
ImportError:

IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!

Importing the numpy c-extensions failed.
- Try uninstalling and reinstalling numpy.
- If you have already done that, then:
1. Check that you expected to use Python3.6 from "/home/matt/Documents/pyth-test-env/pypy3/bin/python",
and that you have no directories in your PATH or PYTHONPATH that can
interfere with the Python and numpy version "1.18.3" you're trying to use.
2. If (1) looks fine, you can open a new issue at
https://github.com/numpy/numpy/issues. Please include details on:
- how you installed Python
- how you installed numpy
- your operating system
- whether or not you have multiple versions of Python installed
- if you built from source, your compiler versions and ideally a build log

- If you're working with a numpy git repository, try `git clean -xdf`
(removes all files not under version control) and rebuild numpy.

Note: this error has many possible causes, so please don't comment on
an existing issue about this - open a new one instead.

Original error was: /snap/core/current/lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.29' not found (required by /home/matt/Documents/pyth-test-env/pypy3/site-packages/numpy/core/_multiarray_umath.pypy36-pp73-x86_64-linux-gnu.so)

I have uninstalled and reinstalled numpy, and verified I am using the version my virtual env intends. I am wondering if its possible to use the information given on the last line of the error to solve this directly.

Issue 2:
Reproducing code example:

sudo apt intall pypy3

pypy3 -mpip install numpy

import numpy

<< your code here >>

<!-- Remove these sections for a feature request -->

### Error message:
riginal error was: /snap/core/current/lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.27' not found (required by /home/sharon/.local/lib/pypy3.6/site-packages/numpy/core/_multiarray_umath.pypy36-pp73-x86_64-linux-gnu.so)

<!-- If you are reporting a segfault please include a GDB traceback, which you
can generate by following
https://github.com/numpy/numpy/blob/master/doc/source/dev/development_environment.rst#debugging -->

<!-- Full error message, if any (starting from line Traceback: ...) -->

### Numpy/Python version information:

<!-- Output from 'import sys, numpy; print(numpy.__version__, sys.version)' -->