Opened 11 years ago

Closed 11 years ago

#9636 closed defect (fixed)

Catch output from PARI in Sage

Reported by: jdemeyer Owned by: was
Priority: major Milestone: sage-4.6
Component: interfaces Keywords:
Cc: leif, robertwb Merged in: sage-4.6.alpha0
Authors: Jeroen Demeyer Reviewers: Leif Leonhardy
Report Upstream: N/A Work issues:
Branch: Commit:
Dependencies: Stopgaps:

Status badges

Description (last modified by leif)

The output from print() functions in libpari is directly written to stdout and is not caught by Sage. For example, the following doctest fails:

def printhello():
    """
    sage: printhello()
    hello
    """
    pari('print("hello")')

It gives

File "/home/jdemeyer/paritest.sage", line 3:
    sage: printhello()
Expected:
    hello
Got nothing

Luckily, libpari provides ways to redirect the output. There should be a small Cython wrapper to direct the PARI output to Python's sys.stdout.write().

Dependencies: #9661, #9343

Attachments (1)

9636.patch (2.4 KB) - added by jdemeyer 11 years ago.

Download all attachments as: .zip

Change History (8)

comment:1 Changed 11 years ago by jdemeyer

  • Milestone set to sage-4.6

comment:2 Changed 11 years ago by jdemeyer

  • Authors set to Jeroen Demeyer

comment:3 Changed 11 years ago by jdemeyer

  • Description modified (diff)

comment:4 Changed 11 years ago by jdemeyer

  • Status changed from new to needs_review

comment:5 Changed 11 years ago by leif

  • Cc leif added

Changed 11 years ago by jdemeyer

comment:6 Changed 11 years ago by leif

  • Cc robertwb added
  • Description modified (diff)
  • Reviewers set to Leif Leonhardy
  • Status changed from needs_review to positive_review
cdef extern: 
    PariOUT defaultOut 
    PariOUT defaultErr 

should perhaps migrate to sage/libs/pari/decl.pxi, too.

Positive review from me though. Robert, anything to complain about?


I wonder when Cython will support const...

comment:7 Changed 11 years ago by mpatel

  • Merged in set to sage-4.6.alpha0
  • Resolution set to fixed
  • Status changed from positive_review to closed
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