Plot legend after loop with additional labels

Question

I have a plot with multiple plt.vlines printed both through a for loop and out of it.

with open('textfile.txt', 'r') as f:
    for line in f:
        element = line.rstrip('\n')
        x_value = [1,2,3,4,5]
        if element == 101:
            plt.vlines(x_value, color='b', ymin=0.03, ymax=0.035, linestyle='-', label='This label', lw=1.8)
        else:
            plt.vlines(x_value, color='b', ymin=0.03, ymax=0.035, linestyle='-', lw=1.8)

plt.vlines(6, color='r', ymin=0.03, ymax=0.035, linestyle='-', label='This other label', lw=1.8)

plt.legend(loc='upper left', fontsize=16, framealpha=1)

But I want to plot the legend for both named labels, while as it is now, the plot shows only the label called at last.