IndexError: list index out of range

[gunjan_3]

This is what I have:
When I try to do this, it shows me an error: IndexError: list index out of range
Could someone help?

with open(os.path.join(path, file.replace(".root", ".txt")), 'r') as f:
    lines = f.readlines()
htemp = TH1D(name, name, nBins, eMin, eMax)
for i in range(len(lines)):
    htemp.SetBinContent(i + 1, float(lines[i]))
entries = int(lines[-1])
return prepareHisto(htemp, xLabel, yLabel), entries

[Gribouillis]

Normally, the exception traceback that python prints on the screen tells you the line number and statement where the error occurred. Can you post the whole traceback ?

[gunjan_3]

I don't know if this would help you to understand!

Traceback (most recent call last):
  File "Desktop/python/check2.py", line 135, in readTextIntoHistogram
    entries = int(lines[-1])
IndexError: list index out of range

[Gribouillis]

If there is no lines[-1] it means that the lines list is empty (there is no last item). Try to check the length of the list first.