Check out the pymaf.MafFrame.plot_oncoplot method I wrote:

from fuc import common, pymaf
common.load_dataset('tcga-laml')
f = '~/fuc-data/tcga-laml/tcga_laml.maf.gz'
mf = pymaf.MafFrame.from_file(f)
mf.plot_oncoplot()

You can convert VCF to MAF with the pymaf.MafFrame.from_vcf method:

from fuc import pymaf
mf = pymaf.MafFrame.from_vcf('annotated.vcf')

Just wanted to let you know that you can now use the fuc package to draw a rainfall plot directly from VCF with the pyvcf.VcfFrame.plot_rainfall method:

import matplotlib.pyplot as plt
import seaborn as sns
from fuc import common, pyvcf
common.load_dataset('brca')
vcf_file = '~/fuc-data/brca/brca.vcf'
vf = pyvcf.VcfFrame.from_file(vcf_file)
vf.plot_rainfall('TCGA-A8-A08B',
                 figsize=(14, 7),
                 palette=sns.color_palette('Set2')[:6])
plt.tight_layout()

Take a look at this: plot-VCF