How to download and setup cleo
Open terminal and run command
                                            git clone https://github.com/python-poetry/cleo.git
                                        
                                        git clone is used to create a copy or clone of cleo repositories.
                                        You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with cleo https://github.com/python-poetry/cleo/archive/master.zip
Or simply clone cleo with SSH
                                            [email protected]:python-poetry/cleo.git                                    
                                    If you have some problems with cleo
You may open issue on cleo support forum (system) here: https://github.com/python-poetry/cleo/issuesSimilar to cleo repositories
Here you may see cleo alternatives and analogs
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