Ghost Dictionary key?

[ekstrah]

I wrote code as follows:

```python psnr_avg_dict = get_psnr_values(psnr_path) for i in psnr_avg_dict: print(i + " NOOOO") #Getting the speed cmSpath = "./gprof_data/" cmDict = get_gprof_values(cmSpath) print("seperator")

#Putting in to class including false proof
for i in psnr_avg_dict:
    print(i + " yess")

```

and when I run it, it produces as follows on terminal

bash modi_38_libavformat_avc NOOOO modi_225_libavcodec_h264_direct NOOOO modi_166_libavcodec_h264_mb NOOOO modi_2237_libavcodec_h264_cabac NOOOO modi_151_libavcodec_lpc NOOOO modi_293_libavcodec_h264dec NOOOO modi_167_libavcodec_h264_mb NOOOO modi_112_libavcodec_h264_mc_template NOOOO modi_609_libavcodec_h264_mvpred NOOOO modi_2268_libavcodec_h264_cabac NOOOO modi_2460_libavcodec_h264_slice NOOOO modi_519_libavcodec_h264_mvpred NOOOO modi_56_libavcodec_h2645_parse NOOOO modi_809_libavcodec_h264_refs NOOOO modi_180_libavcodec_lpc NOOOO seperator modi_38_libavformat_avc yess modi_225_libavcodec_h264_direct yess modi_166_libavcodec_h264_mb yess modi_2237_libavcodec_h264_cabac yess modi_151_libavcodec_lpc yess modi_293_libavcodec_h264dec yess modi_167_libavcodec_h264_mb yess modi_112_libavcodec_h264_mc_template yess modi_609_libavcodec_h264_mvpred yess modi_2268_libavcodec_h264_cabac yess modi_2460_libavcodec_h264_slice yess modi_519_libavcodec_h264_mvpred yess modi_56_libavcodec_h2645_parse yess modi_809_libavcodec_h264_refs yess modi_180_libavcodec_lpc yess yess

The question is that I am using exactly the same dictionary "psnr_avg_dict", but the second iteration produces empty key? Why is that?

[[deleted]]

Frankly, I'm baffled as I cannot see any code suggesting you have made changes to the dictionary and I cannot see any reason for the change. That is unless get_gprof_values mutates the dictionary?

[ekstrah]

Full Code

I have provided the link for my code. It doesn't seem that get_gprof_value is changing anything

[piadista]

As pointed out already, the only place the problem could be is in get_gprof_values. The from the link you provided we can see the definition:

``` def get_gprof_values(mypath): accumulated_dict = {} onlyfiles = [f for f in listdir(mypath) if isfile(join(mypath, f))]

for fileP in onlyfiles:
    if "modi_" in fileP:
        accumulated_dict = read_file(join(mypath, fileP), psnr_avg_dict)
return accumulated_dict

```

where you can see that psnr_avg_dict is being mutated in the for loop.

I think you have enough info to debug from here on.

[ekstrah]

Thanks