我通过使用 python=3.6.5 和 imageio=2.4.1 创建一个新的 conda 环境解决了上述问题。
$ conda list | grep python
ipython 7.11.1 py36h39e3cac_0
ipython_genutils 0.2.0 py36_0
opencv-python 4.1.2.30 pypi_0 pypi
python 3.6.5 hc3d631a_2
python-dateutil 2.8.1 py_0
$ conda list | grep imageio
imageio 2.4.1 py36_1000 conda-forge
$ conda list | grep moviepy
moviepy 0.2.3.5 py_0 conda-forge
$ conda list | grep tensorflow
tensorflow 1.14.0 gpu_py36h3fb9ad6_0
tensorflow-base 1.14.0 gpu_py36he45bfe2_0
tensorflow-estimator 1.14.0 py_0
tensorflow-gpu 1.14.0 h0d30ee6_0
$ conda list | grep ffmpeg
ffmpeg 4.2 h167e202_0 conda-forge