matplotlib

basic.py

import matplotlib.pyplot as plt
from matplotlib.backends.backend_pdf import PdfPages
import datetime

infodict={'Author':'yAngle',
          'CreationDate':datetime.datetime.today(),
          'ModDate':datetime.datetime.today(),
         }

fig=plt.figure(figsize=(3.4,2.2)) # 3.4 for RevTeX columnwidth, 2.2 ~ golden ratio
lbwh=[0.17, 0.15, 0.80, 0.81]
ax=fig.add_axes(lbwh)

x=np.linspace(0,2*np.pi,21)
ax.plot(x,np.sin(x))

if 1:
    fig.savefig('abc.pdf')
    plt.close()
else:
    pdf=PdfPages('abc.pdf')
    d=dict(infodict)
    d['Title']='title'
    pdf.infodict().update(d)
    pdf.savefig(fig)
    plt.close()
    pdf.close()