TypeError: '_TemporaryFileWrapper' object is not an iterator
Antoon Pardon
antoon.pardon at rece.vub.ac.be
Wed Jul 27 10:01:47 EDT 2016
I am rewriting a program so it can work in python3.
I am making progress, but now I stumble on the exception mentioned in
the subject.
The code still works in python2.
What I'm doing is to write the results to temporary file that needs to be
sorted afterwards. For as far as I understand after done writing all to
the file and seeking it to the beginning I get the following when I start
reading from it.
Traceback (most recent call last):
File "/local/home/apardon/src/fietsroutes/pymain.py", line 132, in main
Exit_Nr = process(sys.argv)
File "/local/home/apardon/src/fietsroutes/route.py", line 491, in program
make_routes(map)
File "/local/home/apardon/src/fietsroutes/route.py", line 465, in make_routes
for rt in sortfile(allroutes, load, dump):
File "/local/home/apardon/src/fietsroutes/filesort.py", line 129, in sortfile
prv = next(itr)
File "/local/home/apardon/src/fietsroutes/filesort.py", line 67, in Queuer
buf = take(21, itr)
File "/local/home/apardon/src/fietsroutes/filesort.py", line 21, in take
ls.append(next(iterable))
File "/local/home/apardon/src/fietsroutes/filesort.py", line 35, in loading
ln = load(fl)
File "/local/home/apardon/src/fietsroutes/route.py", line 366, in load
return greep(next(fl))
TypeError: '_TemporaryFileWrapper' object is not an iterator
Locals by frame, innermost last
Frame main in /local/home/apardon/src/fietsroutes/pymain.py at line 149
pn = 'route'
process = <function program at 0x7f2651a12b70>
Frame program in /local/home/apardon/src/fietsroutes/route.py at line 491
argv = ['route', '-r', '45']
index = 3
map = {'84Bh': {'83Bh': 17, '01Wo': 42, '85Bm': 37}, '70Rb': {'18Rb': 26, '03Zu': 91, "43Gd'": 33}, "43Gd'": { ...
Frame make_routes in /local/home/apardon/src/fietsroutes/route.py at line 465
Dists = {'35HS': 204, '91Rt': 208, '79Oi': 492, "61Ch'": 347, '78AP': 479, '33Bt': 444, '241L': 429, '54Rh': 385 ...
MinLength = 249
OldMin = 216
allroutes = <tempfile._TemporaryFileWrapper object at 0x7f2650b09c88>
dest = '16Pl'
dist = 58
last = '86Ll'
last_time = 1469626452.5767715
map = {'84Bh': {'83Bh': 17, '01Wo': 42, '85Bm': 37}, '70Rb': {'18Rb': 26, '03Zu': 91, "43Gd'": 33}, "43Gd'": { ...
nr = 29
nwrt = ('16Pl', '86Ll', '80Wz', '79Bs', '59Bs', '69Vs', "70Vs'", '70Vs"', "78Th'", '78Th"', '48Th', '45Th', '01 ...
nwtot = 274
prv = '80Wz'
route = ('86Ll', '80Wz', '79Bs', '59Bs', '69Vs', "70Vs'", '70Vs"', "78Th'", '78Th"', '48Th', '45Th', '01Th', '04 ...
start = '00Th'
total = 216
vizor = ''
Frame sortfile in /local/home/apardon/src/fietsroutes/filesort.py at line 129
fl = <tempfile._TemporaryFileWrapper object at 0x7f2650b09c88>
in1 = <tempfile._TemporaryFileWrapper object at 0x7f2650b09cf8>
in2 = <tempfile._TemporaryFileWrapper object at 0x7f2650af6358>
itr = <generator object Queuer at 0x7f2650b4e9d8>
ou1 = <tempfile._TemporaryFileWrapper object at 0x7f2650af6160>
ou2 = <tempfile._TemporaryFileWrapper object at 0x7f2650af6550>
swaps = 0
warn = <built-in method write of _io.TextIOWrapper object at 0x7f26535a67e0>
Frame Queuer in /local/home/apardon/src/fietsroutes/filesort.py at line 67
fl = <tempfile._TemporaryFileWrapper object at 0x7f2650b09c88>
itr = <generator object loading at 0x7f2650b4ec18>
Frame take in /local/home/apardon/src/fietsroutes/filesort.py at line 23
_ = 0
iterable = <generator object loading at 0x7f2650b4ec18>
ls = []
n = 21
Frame loading in /local/home/apardon/src/fietsroutes/filesort.py at line 40
fl = <tempfile._TemporaryFileWrapper object at 0x7f2650b09c88>
Frame load in /local/home/apardon/src/fietsroutes/route.py at line 366
fl = <tempfile._TemporaryFileWrapper object at 0x7f2650b09c88>
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