TypeError: 'map' object is not subscriptable

[StormArcher]

is there any one have this problem when run the code in python3 environment ?
can you give me help to solve this problem.

[StormArcher]

$ python run.py
Traceback (most recent call last):
File "run.py", line 79, in
tracker.init([ix, iy, w, h], frame) # TODO tracker.init
File "/home/hp/zjc/nk_PyCharm/PyCharm_project/nk_DeepSortYolo/deep_sort_yolov3-master/3_uoip-KCFpy
/KCFpy/kcftracker.py", line 283, in init
self._tmpl = self.getFeatures(image, 1)
File "/home/hp/zjc/nk_PyCharm/PyCharm_project/nk_DeepSortYolo/deep_sort_yolov3-master/3_uoip-KCFpy
/KCFpy/kcftracker.py", line 194, in getFeatures
cx = self._roi[0] + self._roi[2]/2 # float # TODO 此处报错
TypeError: 'map' object is not subscriptable

[Dai-z]

$ python run.py
Traceback (most recent call last):
File "run.py", line 79, in
tracker.init([ix, iy, w, h], frame) # TODO tracker.init
File "/home/hp/zjc/nk_PyCharm/PyCharm_project/nk_DeepSortYolo/deep_sort_yolov3-master/3_uoip-KCFpy
/KCFpy/kcftracker.py", line 283, in init
self._tmpl = self.getFeatures(image, 1)
File "/home/hp/zjc/nk_PyCharm/PyCharm_project/nk_DeepSortYolo/deep_sort_yolov3-master/3_uoip-KCFpy
/KCFpy/kcftracker.py", line 194, in getFeatures
cx = self._roi[0] + self._roi[2]/2 # float # TODO 此处报错
TypeError: 'map' object is not subscriptable

map() returns a list in python2, but in python3, it returns a map object.
So you can wrap map() with list() e.g.

list(map(float, roi))

And i guess you'll meet other errors with python3 like: '/' may return a int in python2 if two numbers are both int, but always return float in python3.

After solving all these errors with python3, I can run this code, but sometimes I crop a region, it will crash, like this:

Do you know anything about this?

[StormArcher]

Thanks i already use list map.your advice is good .i meet many problem .now i can run . I am in china . It is to late .tomorrow i will see the problem you put deeper

[StormArcher]

when you crop a region. It.must be even pixel .if it's odd pixel,will meet this problem. raw an col both need even .i solve the problem by turning odd to even. I hope it can help you .if you have other better method please share it with me

[Dai-z]

Thanks! It won't crash now

[StormArcher]

Do you. Use the method i provide to. Solve your problem ？ i think there is other better way to solve it

[raozhongyu]

你好，我想问一下添加list 之后是否出现
Traceback (most recent call last):
File "/home/rao/KCFpy/run.py", line 75, in
tracker.init([ix,iy,w,h], frame)
File "/home/rao/KCFpy/kcftracker.py", line 271, in init
self._tmpl = self.getFeatures(image, 1)
File "/home/rao/KCFpy/kcftracker.py", line 220, in getFeatures
z = cv2.resize(z, tuple(self._tmpl_sz))
TypeError: integer argument expected, got float
这种问题

[irisqp]

ink there is other better way to solve it
你好，我也遇到了这个问题，请问你具体是怎么改的呢？even pixel怎么确定，还有就是，我怎么能暂停视频，画好我要追踪的目标，然后再追踪呢，视频里的目标移动太快了，我来不及画框。

[irisqp]

你好，我想问一下添加list 之后是否出现
Traceback (most recent call last):
File "/home/rao/KCFpy/run.py", line 75, in
tracker.init([ix,iy,w,h], frame)
File "/home/rao/KCFpy/kcftracker.py", line 271, in init
self._tmpl = self.getFeatures(image, 1)
File "/home/rao/KCFpy/kcftracker.py", line 220, in getFeatures
z = cv2.resize(z, tuple(self._tmpl_sz))
TypeError: integer argument expected, got float
这种问题

是，我把float转为int后还会报新的错误

[thenighthunter0]

然后，你们怎么解决的呢

[HIT-five]

然后，你们怎么解决的呢

change all the '/' into '//' in these codes

[GreenTeaHua]

in line #267
self._roi = list(map(float, roi)) # add list by hua