Python - 使用 function 将多个图形保存到单个文件

Question

I'm pretty new to Python and am experiencing some issues while using pyplot in part of a larger program. I am passing a list (which is taken from a column of a csv) to a function which is to plot a histogram and save it to file. Here is the function:

def plot_hist(column_list):
    """Plots a histogram from column data passed as a list"""
    global display_count
    display_count += 1
    plt.hist = plt.hist(column_list, len(column_list), density=True, facecolor='b', alpha=0.75)
    plt.grid(True)
    fig = plt
    fig.savefig(f'../wk5/display{display_count}.png')

I can successfully save one image to file before experiencing "TypeError: 'tuple' object is not callable". The error itself occurs at lt.hist = plt.hist(column_list, len(column_list), density=True, facecolor='b', alpha=0.75) I also have tried closing the plt and calling.clf() on the fig. Like I said, i'm pretty green to python and hope it's not a stupid mistake. I appreciate any help!

Answer 1

Based on the input from gboffi , I got rid of some useless assignments and it works like a charm.

def plot_hist(column_list):
    """Plots a histogram from column data passed as a list"""
    global display_count
    display_count += 1
    plt.hist(column_list, len(column_list), density=True, facecolor='b', alpha=0.75)
    plt.grid(True)
    plt.savefig(f'../wk5/display{display_count}.png')