1

我试图在使用 Python 3.3.0 的 64 位 Windows 机器上重现Bokeh 教程中最简单的示例。

这是完整的代码

import pandas as pd
import numpy as np
import matplotlib.pyplot as mpl

# NOTE need this import as output_file was not getting imported into the 
#     global namespace
import bokeh.plotting as bkp
from bokeh.plotting import *

# Skip the first point because it can be troublesome
theta = np.linspace(0, 8*np.pi, 10000)[1:]

# Compute the radial coordinates for some different spirals
lituus = theta**(-1/2)          # lituus
golden = np.exp(0.306349*theta) # golden
arch   = theta                  # Archimedean
fermat = theta**(1/2)           # Fermat's

# Now compute the X and Y coordinates (polar mappers planned for Bokeh later)
golden_x = golden*np.cos(theta)
golden_y = golden*np.sin(theta)
lituus_x = lituus*np.cos(theta)
lituus_y = lituus*np.sin(theta)
arch_x   = arch*np.cos(theta)
arch_y   = arch*np.sin(theta)
fermat_x = fermat*np.cos(theta)
fermat_y = fermat*np.sin(theta)

# output to static HTML file
bkp.output_file("lines.html")

# Plot the Archimedean spiral using the `line` renderer. Note how we set the
# color, line thickness, title, and legend value.
line(arch_x, arch_y, color="red", line_width=2, title="Archimean", legend="Archimedean")

这给了我以下错误：

Traceback (most recent call last):
  File "F:\programming\python\python64\python33\lib\site-packages\IPython\core\interactiveshell.py", line 2732, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-1-00be3b4eba05>", line 1, in <module>
    bkp.line(arch_x, arch_y, color="red", line_width=2, title="Archimean", legend="Archimedean")
  File "F:\programming\python\python64\python33\lib\site-packages\bokeh\plotting.py", line 318, in wrapper
    save()
  File "F:\programming\python\python64\python33\lib\site-packages\bokeh\plotting.py", line 284, in save
    f.write(html)
  File "F:\programming\python\python64\python33\lib\encodings\cp1252.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode characters in position 1831286-1831289: character maps to <undefined>

我知道这与 Python 用来写入输出文件的编码有关，但对设置输出文件的编码或 Python 用来写出修复的编码知之甚少这个。帮助表示赞赏。

编辑：

我尝试实施此处给出的建议，始终通过流写入器传递标准输出输出：

if sys.stdout.encoding != 'UTF-8':
    sys.stdout = codecs.getwriter('utf-8')(sys.stdout.buffer, 'strict')
if sys.stderr.encoding != 'UTF-8':
    sys.stderr = codecs.getwriter('utf-8')(sys.stderr.buffer, 'strict')

但有些界面似乎变了，并没有sys.stdout.encoding变数。

Traceback (most recent call last):
  File "F:\programming\python\python64\python33\lib\site-packages\IPython\core\interactiveshell.py", line 2732, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-1-e12310bc7a07>", line 1, in <module>
    if sys.stdout.encoding != 'UTF-8':
  File "F:\programming\python\python64\python33\lib\codecs.py", line 387, in __getattr__
    return getattr(self.stream, name)
AttributeError: '_io.FileIO' object has no attribute 'encoding'
4

2 回答 2

2

我已经打开了一个问题来跟踪这个问题：https ://github.com/ContinuumIO/bokeh/issues/682

正如您与 eryksun 讨论的那样，它似乎很容易修复。

我会在这里为您提供最新信息，但如果您想参与该问题，非常欢迎您。

干杯

于 2014-06-06T13:04:33.973 回答
1

fg nu,

我们无法在我们的 win 平台中复制该问题...您能否加入我们已打开的问题：https ://github.com/ContinuumIO/bokeh/issues/682以获取有关您的设置和架构的更多信息？

如果您能向我们提供更多信息以复制问题并获得快速修复，我们将不胜感激。

谢谢。

达米安

于 2014-06-06T20:56:21.107 回答