Question

如果我将值“TUESDAY”直接传递给WeekdayLocator，如下所示：

ax2.xaxis.set_major_locator(mdates.WeekdayLocator(TUESDAY))

我得到的结果是正确的。现在，当我尝试从下面的给定代码传递值时：

day = calendar.day_name[date.today().weekday()].upper()
fig, ax1 = plt.subplots()
ax1.grid(True)
ax2 = ax1.twinx()
lns1 = ax1.plot(date, y, marker='o')
plt.gcf().autofmt_xdate()
ax2.xaxis.set_major_locator(mdates.WeekdayLocator(day))
ax2.xaxis.set_major_formatter(DateFormatter('%b %d'))
plt.show()

我收到错误：

Traceback (most recent call last):
  File "G:\py\weekly.py", line 53, in <module>
    ax2.xaxis.set_major_locator(mdates.WeekdayLocator(day))
  File "C:\Python34\lib\site-packages\matplotlib\dates.py", line 1250, in __init__
    interval=interval, **self.hms0d)
  File "C:\Python34\lib\site-packages\matplotlib\dates.py", line 721, in __init__
    self._rrule = rrule(**self._construct)
  File "C:\Python34\lib\site-packages\dateutil\rrule.py", line 591, in __init__
    elif not wday.n or freq > MONTHLY:
AttributeError: 'str' object has no attribute 'n'

任何人都可以帮助我如何传递“天”mdates.WeekdayLocator（）

中的值

如何将字符串传递给mdates.WeekdayLocator（）

0 个答案: