Note that if you are executing the following code in Python 2.x, you will have to declare the encoding as UTF-8/Unicode - as follows: 1. # -*- coding: utf-8 -*-. The following function is arguably one of the quickest and easiest methods to check if a string is a number.
All beans and legumes are sources of zinc and copper, but the beans with the highest concentrations of both are adzuki and black beans. Adzuki beans, small red-brown beans often used in Asian main dishes and desserts, provide 9.9 milligrams of zinc and over 2,000 micrograms of copper per cup.
Shiitake and crimini mushrooms are also excellent copper sources and will provide 40 to 75% of your daily need. Many of the excellent food sources of copper are leafy greens, including turnip greens, spinach, Swiss chard, kale, and mustard greens.Asparagus and summer squash are two other excellent vegetable sources of copper. The good and very good sources of copper include many legumes, whole grains, nuts, and seeds.n the foods we commonly eat, there are only very small amounts of copper. As much as any dietary mineral, the amount of copper you eat is directly related to the amounts of minimally processed plant foods you get every day.