ModuleNotFoundError: No module named 'xlrd'
ModuleNotFoundError: No module named 'xlwt'
AttributeError: module 'requests' has no attribute 'get'
ModuleNotFoundError: No module named 'yaml'

打开终端,输入:
pip install SomePackage # 最新版本
pip install SomePackage==1.0.0 # 指定版本
pip install 'SomePackage>=1.0.0' # 最小版本

pip install requests

pip install yaml
ERROR: Could not find a version that satisfies the requirement yaml (from versions: none)
ERROR: No matching distribution found for yaml
解决:pip install pyyaml

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爱生活,爱工作。