方法一:pip3 install web3
错误提示如下:
ERROR: Could not find a version that satisfies the requirement ipfshttpclient==0.7.0a1 (from web3) (from versions: 0.4.10, 0.4.11, 0.4.12, 0.4.13, 0.4.13.1, 0.4.13.2, 0.6.0, 0.6.0.post1, 0.6.1)
ERROR: No matching distribution found for ipfshttpc...