带有chunksize的熊猫read_csv

Question

# calculate CTR
count_all = 0
count_4 = 0
for df in pd.read_csv( open("%s/tianchi_fresh_comp_train_user.csv" % 
root_path,'r'), chunksize=10000):
     try:
         count_user = df['behavior_type'].value_counts()
         count_all += count_user[1]+count_user[2]+count_user[3]+count_user[4]
         count_4 += count_user[4]
     except StopIteration:
         print("Iteration is stopped.")

# CTR
print(count_all)
print(count_4)

错误信息

但是如果我将chunksize从10000修改为100000。       chunksize = 100000， 没关系，没问题

为什么我设置chunksize = 10000时出错？

Answer 1

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    $("#theimage").hide();
    $("#nameofimages").on('click',function(){
       $("#theimage").toggle();
    });
</script>

@section('content')
    @foreach($images as $image)
        <p id="nameofimages">{{ $image->imagenames }}</p>
        <img id="theimage" src="/images/{{ $image->imagelocation }}">
    @endforeach
@endsection

我修改了代码，现在可以，当chunksize = 10000时，没问题。