I am trying to install the python library "fluids" in Excel using =PY( !pip install fluids. Error code : [33mWARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', OSError('Tunnel connection failed: 400 Bad Request'))': /simple/fluids/[0m[33m [0m[33mWARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', OSError('Tunnel connection failed: 400 Bad Request'))': /simple/fluids/[0m[33m [0m[33mWARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', OSError('Tunnel connection failed: 400 Bad Request'))': /simple/fluids/[0m[33m [0m[33mWARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', OSError('Tunnel connection failed: 400 Bad Request'))': /simple/fluids/[0m[33m [0m[33mWARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', OSError('Tunnel connection failed: 400 Bad Request'))': /simple/fluids/[0m[33m [0m[31mERROR: Could not find a version that satisfies the requirement fluids (from versions: none)[0m[31m [0m[31mERROR: No matching distribution found for fluids[0m[31m [0m Default librairies such as numpy work very well. When doing =PY( !pip install numpy, it says : Requirement already satisfied: numpy in /app/officepy/lib/python3.12/site-packages (1.26.4) Fluids work very will in spyder and was installed using !pip install fluids. I am not sure what ProxyError is. Maybye that my work environment doesn't allow this command? But I am able to do it in spyder... I did remove the proxy using : import os os.environ.pop('HTTP_PROXY', None) os.environ.pop('http_proxy', None) os.environ.pop('HTTPS_PROXY', None) os.environ.pop('https_proxy', None) The error code is slightly different : [33mWARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f984dc268a0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/fluids/[0m[33m [0m[33mWARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f984e83fc20>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/fluids/[0m[33m [0m[33mWARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f984dc2b8c0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/fluids/[0m[33m [0m[33mWARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f984dc2be60>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/fluids/[0m[33m [0m[33mWARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f984dc2bef0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/fluids/[0m[33m [0m[31mERROR: Could not find a version that satisfies the requirement fluids (from versions: none)[0m[31m [0m[31mERROR: No matching distribution found for fluids[0m[31m [0m I don't know what do to to make it work in Excel. I red that I could use a virtual environment, but I lack the ability to do it... Thank you! Continue reading...