Read long int from binary file

[Alex Martelli]

Enrico Morelli wrote:
   ...
>> x1 = array('l')
>> f1 = file('file_ok.dat', 'rb')
>> x1.fromfile(f1)
   ...
> Thanks Alex!!!

Prego!-)


> A question, the fromfile syntax wants the n items to read.

Yes, sorry.

> x1.fromfile(f1,1) read exactly one 32 bit long integer?

Yes.  x1.fromfile(f1,999) reads UP TO 999 long integers -- will
probably raise EOFError by finding less than 999 there, so use:

try: x1.fromfile(f1, 999)
except EOFError: pass

Also remember fromfile APPENDS to whatever was already in the
array x, so make sure x is empty before x.fromfile if needed.


> Enrico
> 
> PS. Sei sempre 'r mejo!!

Troppo'bbono dotto`...;-)


Alex