I found a nice wordcloud library (https://github.com/amueller/word_cloud), and a complete works of Lovecraft. What could be better :)
I took some liberties (i did some text replacing), so this is a biased wordcloud.
The code is mostly copied from the examples for the library itself.
from wordcloud import WordCloud
import matplotlib.pyplot as plt
from PIL import Image
import numpy as np
sFile = 'The Complete Works of H.P. Lovecraft.txt'
iMap = 'Cthulhu.jpg'
lDoc = []
with open(sFile,'r') as f:
sDoc = f.readlines()
for s in sDoc:
if s.strip() != '':
lDoc.append(s.lower())
sDoc = []
text = ' '.join(lDoc)
for l in lReplace:
text = text.replace(l[0],l[1])
mask = np.array(Image.open(iMap))
wc = WordCloud(background_color="white", max_words=2000, mask=mask,
contour_width=3, contour_color='steelblue')
# generate word cloud
wc.generate(text)
# store to file
wc.to_file("cthulhu.png")
# show
plt.imshow(wc, interpolation='bilinear')
plt.axis("off")
plt.figure()
plt.imshow(mask, cmap=plt.cm.gray, interpolation='bilinear')
plt.axis("off")
plt.show() 
