1 | initial version |

I tried and i cannot reproduce it on `GNU/Linux x86_64`

. I got (without error):

```
sage: fork_test()
parent, child: 5167
child
2
```

(i replaced the "dummy matrix calculation" by `print 1+1`

).

Hence, there might be a problem with your build. Did you download the binary corresponding to your OS ? Which one (architecture, OS, Sage binary) ? Did you compile Sage by yourself ? Which version ? Does it work if you run it from a python shell on the same machine (type `python`

from the command line, not `sage`

nor `sage -python`

) ?

2 | No.2 Revision |

I tried and i cannot reproduce it on `GNU/Linux x86_64`

. I got (without error):

```
sage: fork_test()
parent, child: 5167
child
2
```

(i replaced the "dummy matrix calculation" by `print 1+1`

).

Hence, there might be a problem with your ~~build. ~~build (and more precisely the python binary). Did you download the binary corresponding to your OS ? Which one (architecture, OS, Sage binary) ? Did you compile Sage by yourself ? Which version ? Does it work if you run ~~it ~~the first script from a python shell on the same machine (type `python`

from the command line, not `sage`

nor `sage -python`

) ?

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