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AmJaz opened this issue Jan 25, 2019 · 10 comments
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FileNotFoundError: [WinError 2] The system cannot find the file specified #13284

AmJaz opened this issue Jan 25, 2019 · 10 comments
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Community support Users in need of help. status: duplicate

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@AmJaz
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AmJaz commented Jan 25, 2019 •
edited by jklymak
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I want to plot this simple code:

import numpy as np
import matplotlib.pyplot as plt

# Example data
t = np.arange(0.0, 1.0 + 0.01, 0.01)
s = np.cos(4 * np.pi * t) + 2

plt.rc('text', usetex=True)
plt.rc('font', family='serif')
plt.plot(t, s)

plt.xlabel(r'\textbf{time} (s)')
plt.ylabel(r'\textit{voltage} (mV)',fontsize=16)
plt.title(r"\TeX\ is Number "
          r"$\displaystyle\sum_{n=1}^\infty\frac{-e^{i\pi}}{2^n}$!",
          fontsize=16, color='gray')
# Make room for the ridiculously large title.
plt.subplots_adjust(top=0.8)

plt.savefig('tex_demo')
plt.show()

the face the following error:

runfile('C:/Workspace/jaza0001/untitled0.py', wdir='C:/Workspace/jaza0001')
Traceback (most recent call last):

  File "<ipython-input-13-2954d5a98220>", line 1, in <module>
    runfile('C:/Workspace/jaza0001/untitled0.py', wdir='C:/Workspace/jaza0001')

  File "C:\Temp\Anaconda\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 704, in runfile
    execfile(filename, namespace)

  File "C:\Temp\Anaconda\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 108, in execfile
    exec(compile(f.read(), filename, 'exec'), namespace)

  File "C:/Workspace/jaza0001/untitled0.py", line 20, in <module>
    plt.savefig('tex_demo')

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\pyplot.py", line 689, in savefig
    res = fig.savefig(*args, **kwargs)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\figure.py", line 2094, in savefig
    self.canvas.print_figure(fname, **kwargs)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\backend_bases.py", line 2075, in print_figure
    **kwargs)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\backends\backend_agg.py", line 510, in print_png
    FigureCanvasAgg.draw(self)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\backends\backend_agg.py", line 402, in draw
    self.figure.draw(self.renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\figure.py", line 1649, in draw
    renderer, self, artists, self.suppressComposite)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images
    a.draw(renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\axes\_base.py", line 2628, in draw
    mimage._draw_list_compositing_images(renderer, self, artists)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images
    a.draw(renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\axis.py", line 1187, in draw
    renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\axis.py", line 1125, in _get_tick_bboxes
    extent = tick.label1.get_window_extent(renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\text.py", line 930, in get_window_extent
    bbox, info, descent = self._get_layout(self._renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\text.py", line 313, in _get_layout
    ismath=ismath)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\backends\backend_agg.py", line 209, in get_text_width_height_descent
    s, fontsize, renderer=self)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\texmanager.py", line 464, in get_text_width_height_descent
    dvifile = self.make_dvi(tex, fontsize)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\texmanager.py", line 328, in make_dvi
    texfile], tex)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\texmanager.py", line 298, in _run_checked_subprocess
    stderr=subprocess.STDOUT)

  File "C:\Temp\Anaconda\lib\subprocess.py", line 389, in check_output
    **kwargs).stdout

  File "C:\Temp\Anaconda\lib\subprocess.py", line 466, in run
    with Popen(*popenargs, **kwargs) as process:

  File "C:\Temp\Anaconda\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 171, in __init__
    super(SubprocessPopen, self).__init__(*args, **kwargs)

  File "C:\Temp\Anaconda\lib\subprocess.py", line 769, in __init__
    restore_signals, start_new_session)

  File "C:\Temp\Anaconda\lib\subprocess.py", line 1172, in _execute_child
    startupinfo)

FileNotFoundError: [WinError 2] The system cannot find the file specified

Error in callback <function install_repl_displayhook.<locals>.post_execute at 0x000001C8A5C1E6A8> (for post_execute):
Traceback (most recent call last):

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\pyplot.py", line 109, in post_execute
    draw_all()

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\_pylab_helpers.py", line 132, in draw_all
    f_mgr.canvas.draw_idle()

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\backend_bases.py", line 1899, in draw_idle
    self.draw(*args, **kwargs)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\backends\backend_agg.py", line 402, in draw
    self.figure.draw(self.renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\figure.py", line 1649, in draw
    renderer, self, artists, self.suppressComposite)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images
    a.draw(renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\axes\_base.py", line 2628, in draw
    mimage._draw_list_compositing_images(renderer, self, artists)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images
    a.draw(renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\axis.py", line 1187, in draw
    renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\axis.py", line 1125, in _get_tick_bboxes
    extent = tick.label1.get_window_extent(renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\text.py", line 930, in get_window_extent
    bbox, info, descent = self._get_layout(self._renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\text.py", line 313, in _get_layout
    ismath=ismath)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\backends\backend_agg.py", line 209, in get_text_width_height_descent
    s, fontsize, renderer=self)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\texmanager.py", line 464, in get_text_width_height_descent
    dvifile = self.make_dvi(tex, fontsize)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\texmanager.py", line 328, in make_dvi
    texfile], tex)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\texmanager.py", line 298, in _run_checked_subprocess
    stderr=subprocess.STDOUT)

  File "C:\Temp\Anaconda\lib\subprocess.py", line 389, in check_output
    **kwargs).stdout

  File "C:\Temp\Anaconda\lib\subprocess.py", line 466, in run
    with Popen(*popenargs, **kwargs) as process:

  File "C:\Temp\Anaconda\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 171, in __init__
    super(SubprocessPopen, self).__init__(*args, **kwargs)

  File "C:\Temp\Anaconda\lib\subprocess.py", line 769, in __init__
    restore_signals, start_new_session)

  File "C:\Temp\Anaconda\lib\subprocess.py", line 1172, in _execute_child
    startupinfo)

FileNotFoundError: [WinError 2] The system cannot find the file specified

Traceback (most recent call last):

  File "C:\Temp\Anaconda\lib\site-packages\IPython\core\formatters.py", line 341, in __call__
    return printer(obj)

  File "C:\Temp\Anaconda\lib\site-packages\IPython\core\pylabtools.py", line 244, in <lambda>
    png_formatter.for_type(Figure, lambda fig: print_figure(fig, 'png', **kwargs))

  File "C:\Temp\Anaconda\lib\site-packages\IPython\core\pylabtools.py", line 128, in print_figure
    fig.canvas.print_figure(bytes_io, **kw)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\backend_bases.py", line 2049, in print_figure
    **kwargs)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\backends\backend_agg.py", line 510, in print_png
    FigureCanvasAgg.draw(self)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\backends\backend_agg.py", line 402, in draw
    self.figure.draw(self.renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\figure.py", line 1649, in draw
    renderer, self, artists, self.suppressComposite)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images
    a.draw(renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\axes\_base.py", line 2628, in draw
    mimage._draw_list_compositing_images(renderer, self, artists)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images
    a.draw(renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\axis.py", line 1187, in draw
    renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\axis.py", line 1125, in _get_tick_bboxes
    extent = tick.label1.get_window_extent(renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\text.py", line 930, in get_window_extent
    bbox, info, descent = self._get_layout(self._renderer)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\text.py", line 313, in _get_layout
    ismath=ismath)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\backends\backend_agg.py", line 209, in get_text_width_height_descent
    s, fontsize, renderer=self)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\texmanager.py", line 464, in get_text_width_height_descent
    dvifile = self.make_dvi(tex, fontsize)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\texmanager.py", line 328, in make_dvi
    texfile], tex)

  File "C:\Temp\Anaconda\lib\site-packages\matplotlib\texmanager.py", line 298, in _run_checked_subprocess
    stderr=subprocess.STDOUT)

  File "C:\Temp\Anaconda\lib\subprocess.py", line 389, in check_output
    **kwargs).stdout

  File "C:\Temp\Anaconda\lib\subprocess.py", line 466, in run
    with Popen(*popenargs, **kwargs) as process:

  File "C:\Temp\Anaconda\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 171, in __init__
    super(SubprocessPopen, self).__init__(*args, **kwargs)

  File "C:\Temp\Anaconda\lib\subprocess.py", line 769, in __init__
    restore_signals, start_new_session)

  File "C:\Temp\Anaconda\lib\subprocess.py", line 1172, in _execute_child
    startupinfo)

FileNotFoundError: [WinError 2] The system cannot find the file specified

<Figure size 432x288 with 1 Axes>
@jklymak
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jklymak commented Jan 25, 2019

What version of Matplotlib? Something like this was recently fixed so please try 3.0.2.

@jklymak
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jklymak commented Jan 25, 2019

I'm going to close as a duplicate of #12173, but please ping again if a more recent matplotlib doesn't fix this problem and we can re-open.

(also in the future, you can use three back ticks to delineate code: "```" )

@jklymak jklymak closed this as completed Jan 25, 2019
@AmJaz
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AmJaz commented Jan 25, 2019

I use the latest version of matplotlib (3.0.2) but I still have this problem

@AmJaz
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AmJaz commented Jan 25, 2019 via email

@jklymak
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jklymak commented Jan 25, 2019

You hav set usetex=True Do you have a working latex system on your computer?

@jklymak jklymak added the Community support Users in need of help. label Jan 25, 2019
@anntzer anntzer mentioned this issue Jan 25, 2019
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@yzhang-gh
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The same issue here. It used to work well but had this issue after I updated it to the latest version.

The minimal reproducing example

import matplotlib.pyplot as plt

plt.rc("text", usetex=True)

plt.plot(range(10))
plt.title("\\textbf{bold}")
plt.show()
Error traceback 
Traceback (most recent call last):
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\backends\backend_qt5.py", line 519, in _draw_idle
    self.draw()
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py", line 402, in draw
    self.figure.draw(self.renderer)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\figure.py", line 1649, in draw
    renderer, self, artists, self.suppressComposite)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images
    a.draw(renderer)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\axes\_base.py", line 2628, in draw
    mimage._draw_list_compositing_images(renderer, self, artists)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images
    a.draw(renderer)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\axis.py", line 1190, in draw
    tick.draw(renderer)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\axis.py", line 304, in draw
    self.label1.draw(renderer)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\text.py", line 754, in draw
    mtext=mtext)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py", line 233, in draw_tex
    Z = texmanager.get_grey(s, size, self.dpi)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\texmanager.py", line 420, in get_grey
    pngfile = self.make_png(tex, fontsize, dpi)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\texmanager.py", line 385, in make_png
    "-T", "tight", "-o", pngfile, dvifile], tex)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\texmanager.py", line 298, in _run_checked_subprocess
    stderr=subprocess.STDOUT)
  File "C:\Users\Yu\Anaconda3\lib\subprocess.py", line 389, in check_output
    **kwargs).stdout
  File "C:\Users\Yu\Anaconda3\lib\subprocess.py", line 466, in run
    with Popen(*popenargs, **kwargs) as process:
  File "C:\Users\Yu\Anaconda3\lib\subprocess.py", line 769, in __init__
    restore_signals, start_new_session)
  File "C:\Users\Yu\Anaconda3\lib\subprocess.py", line 1172, in _execute_child
    startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified
Traceback (most recent call last):
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\backends\backend_qt5.py", line 519, in _draw_idle
    self.draw()
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py", line 402, in draw
    self.figure.draw(self.renderer)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\figure.py", line 1649, in draw
    renderer, self, artists, self.suppressComposite)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images
    a.draw(renderer)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\axes\_base.py", line 2628, in draw
    mimage._draw_list_compositing_images(renderer, self, artists)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images
    a.draw(renderer)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\axis.py", line 1190, in draw
    tick.draw(renderer)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\axis.py", line 304, in draw
    self.label1.draw(renderer)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
    return draw(artist, renderer, *args, **kwargs)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\text.py", line 754, in draw
    mtext=mtext)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py", line 233, in draw_tex
    Z = texmanager.get_grey(s, size, self.dpi)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\texmanager.py", line 420, in get_grey
    pngfile = self.make_png(tex, fontsize, dpi)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\texmanager.py", line 385, in make_png
    "-T", "tight", "-o", pngfile, dvifile], tex)
  File "C:\Users\Yu\Anaconda3\lib\site-packages\matplotlib\texmanager.py", line 298, in _run_checked_subprocess
    stderr=subprocess.STDOUT)
  File "C:\Users\Yu\Anaconda3\lib\subprocess.py", line 389, in check_output
    **kwargs).stdout
  File "C:\Users\Yu\Anaconda3\lib\subprocess.py", line 466, in run
    with Popen(*popenargs, **kwargs) as process:
  File "C:\Users\Yu\Anaconda3\lib\subprocess.py", line 769, in __init__
    restore_signals, start_new_session)
  File "C:\Users\Yu\Anaconda3\lib\subprocess.py", line 1172, in _execute_child
    startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified

Matplotlib version: 3.0.2

I can confirm the LaTeX works well using the same shell

>>> latex --version
pdfTeX 3.14159265-2.6-1.40.19 (TeX Live 2018/W32TeX)
...
>>> xelatex --version
XeTeX 3.14159265-2.6-0.99999 (TeX Live 2018/W32TeX)
...

@jklymak
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jklymak commented Feb 4, 2019

Can you try

import subprocess
subprocess.check_output(['latex', '--version'])

Otherwise, maybe the cache needs to be cleared? I think its in ~/.matplotlibrc/tex.cache. Its safe to delete that directory. Maybe move away ~/.matplotlibrc/texsupport.db as well?

@yzhang-gh
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yzhang-gh commented Feb 4, 2019 •
edited
Loading

Thanks for the quick response.

Tried and seemed no problem as well (no CalledProcessError)

image

print(subprocess.check_output(['latex', '--version']))

PS D:\Workspace\vscode-test\test-python> python .\test.py
b'pdfTeX 3.14159265-2.6-1.40.19 (TeX Live 2018/W32TeX)\r\nkpathsea version 6.3.0\r\nCopyright 2018 Han The Thanh (pdfTeX) et al.\r\nThere is NO warranty.  Redistribution of this software is\r\ncovered by the terms of both the pdfTeX copyright and\r\nthe Lesser GNU General Public License.\r\nFor more information about these matters, see the file\r\nnamed COPYING and the pdfTeX source.\r\nPrimary author of pdfTeX: Han The Thanh (pdfTeX) et al.\r\nCompiled with libpng 1.6.34; using libpng 1.6.34\r\nCompiled with zlib 1.2.11; using zlib 1.2.11\r\nCompiled with xpdf version 4.00\r\n'

Also tried removing tex.cache (no texsupport.db there), no luck :(

Update: I was using Python 3.7.1 (Anaconda). I doubt there is a compatibility issue here.

@yzhang-gh
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I know the reason now. We also need dvipng besides LaTeX

Matplotlib’s LaTeX support requires a working LaTeX installation, dvipng (which may be included with your LaTeX installation) ...

Installing dvipng resolved my issue.

@SheldonZhong SheldonZhong mentioned this issue Mar 19, 2019
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@gokul656
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Use Shell=True, It's working for me.

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@jklymak @yzhang-gh @gokul656 @AmJaz