Python Matplotlib如何调整烛台阴影颜色？

我正在youtube上学习制作烛台图表的教程，遇到了一个有趣的问题。本教程显示，您可以通过直接更改matplotlib finance.py文件来编辑烛台线条颜色。finance.py文件中的原始代码如下所示：

lines = []
patches = []
for q in quotes:
    t, open, close, high, low = q[:5]

    if close>=open :
        color = colorup
        lower = open
        height = close-open
    else           :
        color = colordown
        lower = close
        height = open-close

    vline = Line2D(
        xdata=(t, t), ydata=(low, high),
        color='k',
        linewidth=0.5,
        antialiased=True,
        )

请注意vline部分。以下是调整后的代码：

lines = []
patches = []
for q in quotes:
    t, open, close, high, low = q[:5]

    if close>=open :
        color = colorup
        lower = open
        height = close-open
        vline = Line2D(
            xdata=(t, t), ydata=(low, high),
            color=colorup,
            linewidth=0.5,
            antialiased=True,
            )   
    else           :
        color = colordown
        lower = close
        height = open-close
        vline = Line2D(
            xdata=(t, t), ydata=(low, high),
            color=colordown,
            linewidth=0.5,
            antialiased=True,
            )

    '''vline = Line2D(
        xdata=(t, t), ydata=(low, high),
        color='k',
        linewidth=0.5,
        antialiased=True,
        )'''

由于我无法理解的原因，阴影仍然显示为黑色。我已经在两种配置上试过了

Windows XP Python 2.7 Anaconda发行版Matplotlib 1.3 Windows 7 Python 2.7 Python发行版Matplotlib 1.3

---

感谢您的帮助。谢谢。

您是否在函数定义中定义了colorup和colordown？您还需要将def更改为以下内容：

lines = []
patches = []
for q in quotes:
    t, open, close, high, low = q[:5]

    if close>=open :
        color = colorup
        lower = open
        height = close-open
    else           :
        color = colordown
        lower = close
        height = open-close

    vline = Line2D(
        xdata=(t, t), ydata=(low, high),
        color='k',
        linewidth=0.5,
        antialiased=True,
        )

def candlestickax，引号，宽度=0.2，颜色向上='k'，颜色向下='r'， α=1.0：