I have a pandas dataframe named ‘target’, with the following structure:

<class 'pandas.core.frame.DataFrame'>  
RangeIndex: 200000 entries, 0 to 199999
Data columns (total 1 columns):        
 #   Column  Non-Null Count   Dtype
---  ------  --------------   -----
 0   0       200000 non-null  float64
dtypes: float64(1)

I want to create a boxplot of the data in this dataframe and save it to file. My code looks like this:

boxplot = target.boxplot()
boxplot.plot()
plt.savefig('Boxplot.png')
plt.clf()

The resulting png is completely blank – no data, no axis, no title, just a blank white rectangle.

If I use plt.show() instead to try and see what’s being plotted, nothing happens; no popup is generated, not even a blank one.

Does anyone know what might be causing this problem please?