manual_tracking format issue

[apiszcz]

Possible format issue in interpolators.py

  File "tracktest.py", line 5, in <module>
    trajectories = manual_tracking(clip, t1=5, t2=8, fps=1, nobjects=1, savefile="track.txt")
  File "<decorator-gen-101>", line 2, in manual_tracking
  File "lib\moviepy\decorators.py", line 89, in wrapper
    return f(*new_a, **new_kw)
  File "<decorator-gen-100>", line 2, in manual_tracking
  File "lib\moviepy\decorators.py", line 137, in use_clip_fps_by_default
    return f(clip, *new_a, **new_kw)
  File "lib\moviepy\video\tools\tracking.py", line 132, in manual_tracking
    Trajectory.save_list(result, savefile)
  File "lib\moviepy\video\tools\interpolators.py", line 68, in save_list
    header = "\t".join(N*['t (ms)', 'x', 'y']))
  File "lib\numpy\lib\npyio.py", line 1162, in savetxt
    % (str(X.dtype), format))
TypeError: Mismatch between array dtype ('object') and format specifier ('%d')

[dermusikman]

I have a similar problem:

>>> tracking.manual_tracking(clip.subclip(0,4.5), nobjects=2, savefile="left-right-hat.txt")
Traceback (most recent call last):
  File "/usr/lib/python3.5/site-packages/numpy/lib/npyio.py", line 1158, in savetxt
    fh.write(asbytes(format % tuple(row) + newline))
TypeError: %d format: a number is required, not zip

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<decorator-gen-212>", line 2, in manual_tracking
  File "/usr/lib/python3.5/site-packages/moviepy/decorators.py", line 89, in wrapper
    return f(*new_a, **new_kw)
  File "<decorator-gen-211>", line 2, in manual_tracking
  File "/usr/lib/python3.5/site-packages/moviepy/decorators.py", line 137, in use_clip_fps_by_default
    return f(clip, *new_a, **new_kw)
  File "/usr/lib/python3.5/site-packages/moviepy/video/tools/tracking.py", line 132, in manual_tracking
    Trajectory.save_list(result, savefile)
  File "/usr/lib/python3.5/site-packages/moviepy/video/tools/interpolators.py", line 68, in save_list
    header = "\t".join(N*['t (ms)', 'x', 'y']))
  File "/usr/lib/python3.5/site-packages/numpy/lib/npyio.py", line 1162, in savetxt
    % (str(X.dtype), format))
TypeError: Mismatch between array dtype ('object') and format specifier ('%d')
>>> tracking.manual_tracking(clip.subclip(0,frame), nobjects=2, savefile="./left-right-hat.data")
Traceback (most recent call last):
  File "/usr/lib/python3.5/site-packages/numpy/lib/npyio.py", line 1158, in savetxt
    fh.write(asbytes(format % tuple(row) + newline))
TypeError: %d format: a number is required, not zip

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<decorator-gen-212>", line 2, in manual_tracking
  File "/usr/lib/python3.5/site-packages/moviepy/decorators.py", line 89, in wrapper
    return f(*new_a, **new_kw)
  File "<decorator-gen-211>", line 2, in manual_tracking
  File "/usr/lib/python3.5/site-packages/moviepy/decorators.py", line 137, in use_clip_fps_by_default
    return f(clip, *new_a, **new_kw)
  File "/usr/lib/python3.5/site-packages/moviepy/video/tools/tracking.py", line 132, in manual_tracking
    Trajectory.save_list(result, savefile)
  File "/usr/lib/python3.5/site-packages/moviepy/video/tools/interpolators.py", line 68, in save_list
    header = "\t".join(N*['t (ms)', 'x', 'y']))
  File "/usr/lib/python3.5/site-packages/numpy/lib/npyio.py", line 1162, in savetxt
    % (str(X.dtype), format))
TypeError: Mismatch between array dtype ('object') and format specifier ('%d')`

Using Python 3.5. It writes the following to the intended file on one line:
# t (ms) x y t (ms) x y

[keikoro]

Looks like a PR with a fix was merged. Closing.