In similar spirit as #12221, the following is a reproducible failure on sage.math when the $HOME directory is set to /mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/home
using a "screen" terminal (with 138 columns if this matters):
sage -t -force_lib devel/sage/sage/interfaces/sage0.py
**********************************************************************
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/devel/sage-main/sage/interfaces/sage0.py", line 448:
sage: F == sage0(F)._sage_()
Exception raised:
Traceback (most recent call last):
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/ncadoctest.py", line 1231, in run_one_test
self.run_one_example(test, example, filename, compileflags)
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/sagedoctest.py", line 38, in run_one_example
OrigDocTestRunner.run_one_example(self, test, example, filename, compileflags)
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/ncadoctest.py", line 1172, in run_one_example
compileflags, 1) in test.globs
File "<doctest __main__.example_20[4]>", line 1, in <module>
F == sage0(F)._sage_()###line 448:
sage: F == sage0(F)._sage_()
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/lib/python/site-packages/sage/interfaces/sage0.py", line 458, in _sage_
return load(P._local_tmpfile())
File "sage_object.pyx", line 775, in sage.structure.sage_object.load (sage/structure/sage_object.c:7937)
IOError: [Errno 2] No such file or directory: '/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/home/.sage//temp/sage.math.washington.edu/29758//interface//tmp29886.sobj'
**********************************************************************
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/devel/sage-main/sage/interfaces/sage0.py", line 466:
sage: four_gcd(6)
Expected:
2
Got:
<BLANKLINE>
**********************************************************************
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/devel/sage-main/sage/interfaces/sage0.py", line 489:
sage: sage0(4).gcd
Expected:
<built-in method gcd of sage.rings.integer.Integer object at 0x...>
Got:
<BLANKLINE>
**********************************************************************
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/devel/sage-main/sage/interfaces/sage0.py", line 515:
sage: half = reduce_load_element(s); half
Expected:
1/2
Got:
<BLANKLINE>
**********************************************************************
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/devel/sage-main/sage/interfaces/sage0.py", line 547:
sage: sage0_version() == version()
Expected:
True
Got:
False
**********************************************************************
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/devel/sage-main/sage/interfaces/sage0.py", line 174:
sage: print "ignore this"; sage0.cputime() # random output
Exception raised:
Traceback (most recent call last):
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/ncadoctest.py", line 1231, in run_one_test
self.run_one_example(test, example, filename, compileflags)
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/sagedoctest.py", line 38, in run_one_example
OrigDocTestRunner.run_one_example(self, test, example, filename, compileflags)
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/ncadoctest.py", line 1172, in run_one_example
compileflags, 1) in test.globs
File "<doctest __main__.example_3[2]>", line 1, in <module>
print "ignore this"; sage0.cputime() # random output###line 174:
sage: print "ignore this"; sage0.cputime() # random output
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/lib/python/site-packages/sage/interfaces/sage0.py", line 185, in cputime
return float(s)
ValueError: could not convert string to float:
**********************************************************************
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/devel/sage-main/sage/interfaces/sage0.py", line 176:
sage: sage0('factor(2^157-1)')
Expected:
852133201 * 60726444167 * 1654058017289 * 2134387368610417
Got:
<BLANKLINE>
**********************************************************************
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/devel/sage-main/sage/interfaces/sage0.py", line 178:
sage: print "ignore this"; sage0.cputime() # random output
Exception raised:
Traceback (most recent call last):
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/ncadoctest.py", line 1231, in run_one_test
self.run_one_example(test, example, filename, compileflags)
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/sagedoctest.py", line 38, in run_one_example
OrigDocTestRunner.run_one_example(self, test, example, filename, compileflags)
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/ncadoctest.py", line 1172, in run_one_example
compileflags, 1) in test.globs
File "<doctest __main__.example_3[4]>", line 1, in <module>
print "ignore this"; sage0.cputime() # random output###line 178:
sage: print "ignore this"; sage0.cputime() # random output
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/lib/python/site-packages/sage/interfaces/sage0.py", line 185, in cputime
return float(s)
ValueError: invalid literal for float(): 852133201 * 60726444167 * 1654058017289 * 2134387368610417
**********************************************************************
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/devel/sage-main/sage/interfaces/sage0.py", line 191:
sage: t = sage0.trait_names()
Exception raised:
Traceback (most recent call last):
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/ncadoctest.py", line 1231, in run_one_test
self.run_one_example(test, example, filename, compileflags)
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/sagedoctest.py", line 38, in run_one_example
OrigDocTestRunner.run_one_example(self, test, example, filename, compileflags)
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/ncadoctest.py", line 1172, in run_one_example
compileflags, 1) in test.globs
File "<doctest __main__.example_4[2]>", line 1, in <module>
t = sage0.trait_names()###line 191:
sage: t = sage0.trait_names()
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/lib/python/site-packages/sage/interfaces/sage0.py", line 197, in trait_names
return eval(self.eval('print repr(globals().keys())'))
File "<string>", line 0
^
SyntaxError: unexpected EOF while parsing
**********************************************************************
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/devel/sage-main/sage/interfaces/sage0.py", line 192:
sage: len(t) > 100
Exception raised:
Traceback (most recent call last):
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/ncadoctest.py", line 1231, in run_one_test
self.run_one_example(test, example, filename, compileflags)
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/sagedoctest.py", line 38, in run_one_example
OrigDocTestRunner.run_one_example(self, test, example, filename, compileflags)
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/ncadoctest.py", line 1172, in run_one_example
compileflags, 1) in test.globs
File "<doctest __main__.example_4[3]>", line 1, in <module>
len(t) > Integer(100)###line 192:
sage: len(t) > 100
NameError: name 't' is not defined
**********************************************************************
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/devel/sage-main/sage/interfaces/sage0.py", line 194:
sage: 'gcd' in t
Exception raised:
Traceback (most recent call last):
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/ncadoctest.py", line 1231, in run_one_test
self.run_one_example(test, example, filename, compileflags)
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/sagedoctest.py", line 38, in run_one_example
OrigDocTestRunner.run_one_example(self, test, example, filename, compileflags)
File "/mnt/usb1/scratch/jdemeyer/merger/sage-5.0.beta1/local/bin/ncadoctest.py", line 1172, in run_one_example
compileflags, 1) in test.globs
File "<doctest __main__.example_4[4]>", line 1, in <module>
'gcd' in t###line 194:
sage: 'gcd' in t
NameError: name 't' is not defined
**********************************************************************
This reproducible error is fixed by #12221.
The above error also sometimes happens in different circumstances in a non-reproducible way. It is regularly seen on the buildbot for example.
This might very well be a duplicate of #12221.