Time_series_visualizer - AttributeError: 'Int64Index' object has no attribute 'month'

Python
1

I am working my way through the Python for Data Analysis projects and I seem to have hit an error I can’t work out

I run the below code in my Jupyter notebook and it renders the graph as requested

def draw_bar_plot():
    # Copy and modify data for monthly bar plot
    df_bar = df.copy()
    df_bar['month'] = df_bar.index.month
    df_bar['year'] = df_bar.index.year

    df_bar = df_bar.groupby(['year', 'month'])['value'].mean()
    df_bar = df_bar.unstack()

    # Draw bar plot
    
    fig = df_bar.plot.bar(legend = True, figsize = (13, 13), xlabel = 'years', ylabel = "Average Page Views").figure
    plt.legend(['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'])
   
    # Save image and return fig (don't change this part)
    fig.savefig('bar_plot.png')
    return fig

draw_bar_plot()

But when I run this code in the replit environment I get errors

def draw_bar_plot():
    # Copy and modify data for monthly bar plot
    df_bar = df.copy()
    df_bar['month'] = df_bar.index.month
    df_bar['year'] = df_bar.index.year

    df_bar = df_bar.groupby(['year', 'month'])['value'].mean()
    df_bar = df_bar.unstack()

    # Draw bar plot
    fig = df_bar.plot.bar(legend = True, figsize = (13, 13), xlabel = 'years', ylabel = "Average Page Views").figure
    plt.legend(['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'])
   
    # Save image and return fig (don't change this part)
    fig.savefig('bar_plot.png')
    return fig

This returns the following error

Traceback (most recent call last):
  File "main.py", line 7, in <module>
    time_series_visualizer.draw_bar_plot()
  File "/home/runner/boilerplate-page-view-time-series-visualizer-1/time_series_visualizer.py", line 33, in draw_bar_plot
    df_bar['month'] = df_bar.index.month
AttributeError: 'Int64Index' object has no attribute 'month'
exit status 1

I don’t understand why it works in Jupyter and not in replit. why the error if the code is good?

Any help gratefully recieved

2

My assumption is, the Replit uses another version of a relevant library.
The version you have is newer and thus offers this way of interacting with the index.
Replit has an older version, so that there might never be a compatability issue with the implemented test-cases. Because nobody got time to regularly check ALL the tests and used modules and updates and adjust that - so the versions are fixed and you might be the first one to come across an instance where this causes a problem.

3

That was a good assumption, and one I thought off pretty quickly.
Replit environment
Python 3.8.12
Pandas 1.3.5

Jupyter environment
Python 3.8.8
Pandas 1.2.4

I would expect Python/Pandas to be backwards compatible or throw a warning, which I am not seeing in Jupyter.

Anyhoo thanks for your reply. I’m upgrading Anaconda/pandas as we speak so lets see what that does.

4

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