技術標籤：Pythonpip

python 出現以下報錯，是由於你v*n打開了，沒有關掉。

WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', OSError(0, 'Error'))': /simple/netron/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=
 
None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', OSError(0, 'Error'))': /simple/netron/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', OSError(0, 'Error'))': /simple/
 
netron/
WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', OSError(0, 'Error'))': /simple/netron/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('
 
Cannot connect to proxy.', OSError(0, 'Error'))': /simple/netron/
ERROR: Could not find a version that satisfies the requirement netron
ERROR: No matching distribution found for netron

把v*n關掉後，就可以正常下載了

如果用conda安裝也這樣報錯，同樣把v*n關掉就可以了。