[Python] Histogram in Python

I have a list of numbers.The list is like [0,0,1,0,1 .... ] .Presently it has binary digits only but later on it can have decimal digits as well. I want to plot a histogram of this sequence in the list. When I use standard hist funcion of matplotlib library , I get only two bars.It counts all zeros and all ones and shows me the histogram with two bars. But I want to plot in a different way. I want a no of bars = length of list and Height of each bar = value in the list at ( position = bar# ).

Here is the code:

def plot_histogram(self,li_input,):
binseq = numpy.arange(len(li_input))
tupl = matplotlib.pyplot.hist(li_input,bins=binseq)
matplotlib.pyplot.show()


li_input is the list discussed above.

I can do it in a nasty way like :

li_input_mod = []
for x in range(len(li_input)):
li_input_mod += [x]*li_input[x]


and then plot it but i want something better.

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