AttributeError: 'function' object has no attribute 'add_subplot' when using matplotlib in ipython

Question

Hi, I was trying some code from WesMckinney's python data analysis book in ipython environment,which is built in anaconda. When I typed the simple code like

import matplotlib.pyplot as plt

fig = plt.figure

ax1 = fig.add_subplot(2,2,1)
Traceback (most recent call last):

File "<ipython-input-9-559e30a6412a>", line 1, in <module>
ax1 = fig.add_subplot(2,2,1)

AttributeError: 'function' object has no attribute 'add_subplot'

An AttributeError arose, but it's weird since anaconda is surely installed with matplotlib module. So Any suggestion? thank you.

Answer 1

The issue is that you don't have the open and close brackets (()) at the end of plt.figure, so you haven't actually created a figure, just assigned a handle fig to the plt.figure function. Instead, try:

import matplotlib.pyplot as plt

fig = plt.figure() #Here is your error


ax1 = fig.add_subplot(2,2,1)