···

       
1670
       
1670
       
 
       


     

       
1671
       
1671
       
 
       
```nix

     

       
1672
       
1672
       
 
       
  nixpkgs.config.packageOverrides = super: {

     

       
1673
       
1673
       
-
       
    python = super.python.override {

     

       
1673
       
1673
       
+
       
    python3 = super.python3.override {

     

       
1674
       
1674
       
 
       
      packageOverrides = python-self: python-super: {

     

       
1675
       
1675
       
-
       
        twisted = python-super.twisted.overrideAttrs (oldAttrs: {

     

       
1675
       
1675
       
+
       
        twisted = python-super.twisted.overridePythonAttrs (oldAttrs: {

     

       
1676
       
1676
       
 
       
          src = super.fetchPypi {

     

       
1677
       
1677
       
 
       
            pname = "twisted";

     

       
1678
       
1678
       
 
       
            version = "19.10.0";