Python localidade francês no Windows 10 não UTF8?

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Estou tentando escrever um script multiplateform que funciona bem no Mac OS, mas não no Windows se eu carregar o francês local. Eu uso o seguinte código na inicialização para carregar o local dependendo do sistema operacional host:

import locale
from sys import platform

if platform == linux or platform == linux2:
    locale.setlocale( locale.LC_ALL, 'fr_FR')
elif platform == darwin:
    locale.setlocale( locale.LC_ALL, 'fr_FR')
elif platform == win32:
    locale.setlocale( locale.LC_ALL, 'French_France.1252')

Meu código também usam seguintes bibliotecas:

import pandas as pd
import numpy as np

import matplotlib.pyplot as plt

import time as time
import datetime

O código de falha quando eu exibir uma data localizada em uma figura matplotlib. A linha de defeito é:

fig.tight_layout()

E retornar esse erro:

UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe9 in position 10: invalid continuation byte

Obviamente, um problema de codificação.

Meu uso computador com Windows 10 e minha configuração python é Python 3.6.4 | Anaconda 4.4.0 (64-bit) | (Padrão, 16 de janeiro de 2018, 10:22:32) [MSC v.1900 64 bits (AMD64)]

O erro completo retornado é:

'Periode du lundi 04/12/2017 17:11:41 au lundi 04/12/2017 21:59:59 \n Duree de 4h48m19s'

---------------------------------------------------------------------------
UnicodeDecodeError                        Traceback (most recent call last)
<ipython-input-28-4b9aa2e0100e> in <module>()
     48     fig=trace_et_leq_ln(et)
     49 
---> 50     fig.tight_layout()
     51     fig.subplots_adjust(top=0.85)
     52 

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\figure.py in tight_layout(self, renderer, pad, h_pad, w_pad, rect)
   2028         kwargs = get_tight_layout_figure(
   2029             self, self.axes, subplotspec_list, renderer,
-> 2030             pad=pad, h_pad=h_pad, w_pad=w_pad, rect=rect)
   2031         self.subplots_adjust(**kwargs)
   2032 

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\tight_layout.py in get_tight_layout_figure(fig, axes_list, subplotspec_list, renderer, pad, h_pad, w_pad, rect)
    349                                      subplot_list=subplot_list,
    350                                      ax_bbox_list=ax_bbox_list,
--> 351                                      pad=pad, h_pad=h_pad, w_pad=w_pad)
    352 
    353     if rect is not None:

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\tight_layout.py in auto_adjust_subplotpars(fig, renderer, nrows_ncols, num1num2_list, subplot_list, ax_bbox_list, pad, h_pad, w_pad, rect)
    127             continue
    128 
--> 129         tight_bbox_raw = union([ax.get_tightbbox(renderer) for ax in subplots
    130                                 if ax.get_visible()])
    131         tight_bbox = TransformedBbox(tight_bbox_raw,

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\tight_layout.py in <listcomp>(.0)
    128 
    129         tight_bbox_raw = union([ax.get_tightbbox(renderer) for ax in subplots
--> 130                                 if ax.get_visible()])
    131         tight_bbox = TransformedBbox(tight_bbox_raw,
    132                                      fig.transFigure.inverted())

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\axes\_base.py in get_tightbbox(self, renderer, call_axes_locator)
   4013             bb.append(self._right_title.get_window_extent(renderer))
   4014 
-> 4015         bb_xaxis = self.xaxis.get_tightbbox(renderer)
   4016         if bb_xaxis:
   4017             bb.append(bb_xaxis)

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\axis.py in get_tightbbox(self, renderer)
   1088             return
   1089 
-> 1090         ticks_to_draw = self._update_ticks(renderer)
   1091         ticklabelBoxes, ticklabelBoxes2 = self._get_tick_bboxes(ticks_to_draw,
   1092                                                                 renderer)

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\axis.py in _update_ticks(self, renderer)
    972 
    973         interval = self.get_view_interval()
--> 974         tick_tups = list(self.iter_ticks())
    975         if self._smart_bounds and tick_tups:
    976             # handle inverted limits

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\axis.py in iter_ticks(self)
    919         self.major.formatter.set_locs(majorLocs)
    920         majorLabels = [self.major.formatter(val, i)
--> 921                        for i, val in enumerate(majorLocs)]
    922 
    923         minorLocs = self.minor.locator()

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\axis.py in <listcomp>(.0)
    919         self.major.formatter.set_locs(majorLocs)
    920         majorLabels = [self.major.formatter(val, i)
--> 921                        for i, val in enumerate(majorLocs)]
    922 
    923         minorLocs = self.minor.locator()

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\pandas\plotting\_converter.py in __call__(self, x, pos)
   1106         else:
   1107             fmt = self.formatdict.pop(x, '')
-> 1108             return Period(ordinal=int(x), freq=self.freq).strftime(fmt)
   1109 
   1110 

pandas/_libs/period.pyx in pandas._libs.period._Period.strftime()

pandas/_libs/period.pyx in pandas._libs.period.period_format()

pandas/_libs/period.pyx in pandas._libs.period._period_strftime()

UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe9 in position 10: invalid continuation byte

Error in callback <function install_repl_displayhook.<locals>.post_execute at 0x00000213979E4840> (for post_execute):

---------------------------------------------------------------------------
UnicodeDecodeError                        Traceback (most recent call last)
~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\pyplot.py in post_execute()
    148             def post_execute():
    149                 if matplotlib.is_interactive():
--> 150                     draw_all()
    151 
    152             # IPython >= 2

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\_pylab_helpers.py in draw_all(cls, force)
    148         for f_mgr in cls.get_all_fig_managers():
    149             if force or f_mgr.canvas.figure.stale:
--> 150                 f_mgr.canvas.draw_idle()
    151 
    152 atexit.register(Gcf.destroy_all)

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\backend_bases.py in draw_idle(self, *args, **kwargs)
   2059         if not self._is_idle_drawing:
   2060             with self._idle_draw_cntx():
-> 2061                 self.draw(*args, **kwargs)
   2062 
   2063     def draw_cursor(self, event):

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py in draw(self)
    428             # if toolbar:
    429             #     toolbar.set_cursor(cursors.WAIT)
--> 430             self.figure.draw(self.renderer)
    431         finally:
    432             # if toolbar:

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
     53                 renderer.start_filter()
     54 
---> 55             return draw(artist, renderer, *args, **kwargs)
     56         finally:
     57             if artist.get_agg_filter() is not None:

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\figure.py in draw(self, renderer)
   1297 
   1298             mimage._draw_list_compositing_images(
-> 1299                 renderer, self, artists, self.suppressComposite)
   1300 
   1301             renderer.close_group('figure')

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
    136     if not_composite or not has_images:
    137         for a in artists:
--> 138             a.draw(renderer)
    139     else:
    140         # Composite any adjacent images together

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
     53                 renderer.start_filter()
     54 
---> 55             return draw(artist, renderer, *args, **kwargs)
     56         finally:
     57             if artist.get_agg_filter() is not None:

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\axes\_base.py in draw(self, renderer, inframe)
   2435             renderer.stop_rasterizing()
   2436 
-> 2437         mimage._draw_list_compositing_images(renderer, self, artists)
   2438 
   2439         renderer.close_group('axes')

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
    136     if not_composite or not has_images:
    137         for a in artists:
--> 138             a.draw(renderer)
    139     else:
    140         # Composite any adjacent images together

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
     53                 renderer.start_filter()
     54 
---> 55             return draw(artist, renderer, *args, **kwargs)
     56         finally:
     57             if artist.get_agg_filter() is not None:

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\axis.py in draw(self, renderer, *args, **kwargs)
   1131         renderer.open_group(__name__)
   1132 
-> 1133         ticks_to_draw = self._update_ticks(renderer)
   1134         ticklabelBoxes, ticklabelBoxes2 = self._get_tick_bboxes(ticks_to_draw,
   1135                                                                 renderer)

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\axis.py in _update_ticks(self, renderer)
    972 
    973         interval = self.get_view_interval()
--> 974         tick_tups = list(self.iter_ticks())
    975         if self._smart_bounds and tick_tups:
    976             # handle inverted limits

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\axis.py in iter_ticks(self)
    919         self.major.formatter.set_locs(majorLocs)
    920         majorLabels = [self.major.formatter(val, i)
--> 921                        for i, val in enumerate(majorLocs)]
    922 
    923         minorLocs = self.minor.locator()

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\axis.py in <listcomp>(.0)
    919         self.major.formatter.set_locs(majorLocs)
    920         majorLabels = [self.major.formatter(val, i)
--> 921                        for i, val in enumerate(majorLocs)]
    922 
    923         minorLocs = self.minor.locator()

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\pandas\plotting\_converter.py in __call__(self, x, pos)
   1106         else:
   1107             fmt = self.formatdict.pop(x, '')
-> 1108             return Period(ordinal=int(x), freq=self.freq).strftime(fmt)
   1109 
   1110 

pandas/_libs/period.pyx in pandas._libs.period._Period.strftime()

pandas/_libs/period.pyx in pandas._libs.period.period_format()

pandas/_libs/period.pyx in pandas._libs.period._period_strftime()

UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe9 in position 10: invalid continuation byte

---------------------------------------------------------------------------
UnicodeDecodeError                        Traceback (most recent call last)
~\AppData\Local\Continuum\Anaconda3\lib\site-packages\IPython\core\formatters.py in __call__(self, obj)
    339                 pass
    340             else:
--> 341                 return printer(obj)
    342             # Finally look for special method names
    343             method = get_real_method(obj, self.print_method)

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\IPython\core\pylabtools.py in <lambda>(fig)
    236 
    237     if 'png' in formats:
--> 238         png_formatter.for_type(Figure, lambda fig: print_figure(fig, 'png', **kwargs))
    239     if 'retina' in formats or 'png2x' in formats:
    240         png_formatter.for_type(Figure, lambda fig: retina_figure(fig, **kwargs))

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\IPython\core\pylabtools.py in print_figure(fig, fmt, bbox_inches, **kwargs)
    120 
    121     bytes_io = BytesIO()
--> 122     fig.canvas.print_figure(bytes_io, **kw)
    123     data = bytes_io.getvalue()
    124     if fmt == 'svg':

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\backend_bases.py in print_figure(self, filename, dpi, facecolor, edgecolor, orientation, format, **kwargs)
   2214                     orientation=orientation,
   2215                     dryrun=True,
-> 2216                     **kwargs)
   2217                 renderer = self.figure._cachedRenderer
   2218                 bbox_inches = self.figure.get_tightbbox(renderer)

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py in print_png(self, filename_or_obj, *args, **kwargs)
    505 
    506     def print_png(self, filename_or_obj, *args, **kwargs):
--> 507         FigureCanvasAgg.draw(self)
    508         renderer = self.get_renderer()
    509         original_dpi = renderer.dpi

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py in draw(self)
    428             # if toolbar:
    429             #     toolbar.set_cursor(cursors.WAIT)
--> 430             self.figure.draw(self.renderer)
    431         finally:
    432             # if toolbar:

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
     53                 renderer.start_filter()
     54 
---> 55             return draw(artist, renderer, *args, **kwargs)
     56         finally:
     57             if artist.get_agg_filter() is not None:

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\figure.py in draw(self, renderer)
   1297 
   1298             mimage._draw_list_compositing_images(
-> 1299                 renderer, self, artists, self.suppressComposite)
   1300 
   1301             renderer.close_group('figure')

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
    136     if not_composite or not has_images:
    137         for a in artists:
--> 138             a.draw(renderer)
    139     else:
    140         # Composite any adjacent images together

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
     53                 renderer.start_filter()
     54 
---> 55             return draw(artist, renderer, *args, **kwargs)
     56         finally:
     57             if artist.get_agg_filter() is not None:

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\axes\_base.py in draw(self, renderer, inframe)
   2435             renderer.stop_rasterizing()
   2436 
-> 2437         mimage._draw_list_compositing_images(renderer, self, artists)
   2438 
   2439         renderer.close_group('axes')

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
    136     if not_composite or not has_images:
    137         for a in artists:
--> 138             a.draw(renderer)
    139     else:
    140         # Composite any adjacent images together

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
     53                 renderer.start_filter()
     54 
---> 55             return draw(artist, renderer, *args, **kwargs)
     56         finally:
     57             if artist.get_agg_filter() is not None:

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\axis.py in draw(self, renderer, *args, **kwargs)
   1131         renderer.open_group(__name__)
   1132 
-> 1133         ticks_to_draw = self._update_ticks(renderer)
   1134         ticklabelBoxes, ticklabelBoxes2 = self._get_tick_bboxes(ticks_to_draw,
   1135                                                                 renderer)

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\axis.py in _update_ticks(self, renderer)
    972 
    973         interval = self.get_view_interval()
--> 974         tick_tups = list(self.iter_ticks())
    975         if self._smart_bounds and tick_tups:
    976             # handle inverted limits

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\axis.py in iter_ticks(self)
    919         self.major.formatter.set_locs(majorLocs)
    920         majorLabels = [self.major.formatter(val, i)
--> 921                        for i, val in enumerate(majorLocs)]
    922 
    923         minorLocs = self.minor.locator()

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\axis.py in <listcomp>(.0)
    919         self.major.formatter.set_locs(majorLocs)
    920         majorLabels = [self.major.formatter(val, i)
--> 921                        for i, val in enumerate(majorLocs)]
    922 
    923         minorLocs = self.minor.locator()

~\AppData\Local\Continuum\Anaconda3\lib\site-packages\pandas\plotting\_converter.py in __call__(self, x, pos)
   1106         else:
   1107             fmt = self.formatdict.pop(x, '')
-> 1108             return Period(ordinal=int(x), freq=self.freq).strftime(fmt)
   1109 
   1110 

pandas/_libs/period.pyx in pandas._libs.period._Period.strftime()

pandas/_libs/period.pyx in pandas._libs.period.period_format()

pandas/_libs/period.pyx in pandas._libs.period._period_strftime()

UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe9 in position 10: invalid continuation byte

<matplotlib.figure.Figure at 0x2139d1ab630>

E o reprde ther string é:

'Periode du lundi 04/12/2017 17:11:41 au lundi 04/12/2017 21:59:59 \n Duree de 4h48m19s'

Depois de passar muito tempo no google eu posso' encontrar qualquer resposta clara. Alguma sugestão ?

Publicado 18/02/2018 em 18:49
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