Reading Fortran Ascii output using python

[MRAB]

On 2016-10-31 17:46, Heli wrote:
> On Monday, October 31, 2016 at 6:30:12 PM UTC+1, Irmen de Jong wrote:
>> On 31-10-2016 18:20, Heli wrote:
>> > Hi all,
>> >
>> > I am trying to read an ascii file written in Fortran90 using python. I am reading this file by opening the input file and then reading using:
>> >
>> > inputfile.readline()
>> >
>> > On each line of the ascii file I have a few numbers like this:
>> >
>> > line 1: 1
>> > line 2: 1000.834739 2000.38473 3000.349798
>> > line 3: 1000 2000 5000.69394 99934.374638 54646.9784
>> >
>> > The problem is when I have more than 3 numbers on the same line such as line 3, python seems to read this using two reads. This makes the above example will be read like this:
>> >
>> > line 1: 1
>> > line 2: 1000.834739 2000.38473 3000.349798
>> > line 3: 1000 2000 5000.69394
>> > line 4: 99934.374638 54646.9784
>> >
>> > How can I fix this for each fortran line to be read correctly using python?
>> >
>> > Thanks in Advance for your help,
>> >
>> >
>>
>> You don't show any code so it's hard to say what is going on.
>> My guess is that your file contains spurious newlines and/or CRLF combinations.
>>
>> Try opening the file in universal newline mode and see what happens?
>>
>> with open("fortranfile.txt", "rU") as f:
>>     for line in f:
>>         print("LINE:", line)
>>
>>
>> Irmen
>
> Thanks Irmen,
>
> I tried with "rU" but that did not make a difference. The problem is a line that with one single write statement in my fortran code :
>
> write(UNIT=9,FMT="(99g20.8)")  value
>
> seems to be read in two python inputfile.readline().
>
> Any ideas how I should be fixing this?
>
> Thanks,
>
What is actually in the file?

Try opening it in binary mode and print using the ascii function:

     with open("fortranfile.txt", "rb") as f:
         contents = f.read()

     print("CONTENTS:", ascii(contents))