Python matplotlib.checkdep_ghostscript() Examples
The following are 26 code examples for showing how to use matplotlib.checkdep_ghostscript(). These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example.
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Example 1
| Project: neural-network-animation Author: miloharper File: compare.py License: MIT License | 6 votes |
|
def _update_converter():
gs, gs_v = matplotlib.checkdep_ghostscript()
if gs_v is not None:
cmd = lambda old, new: \
[gs, '-q', '-sDEVICE=png16m', '-dNOPAUSE', '-dBATCH',
'-sOutputFile=' + new, old]
converter['pdf'] = make_external_conversion_command(cmd)
converter['eps'] = make_external_conversion_command(cmd)
if matplotlib.checkdep_inkscape() is not None:
cmd = lambda old, new: \
['inkscape', '-z', old, '--export-png', new]
converter['svg'] = make_external_conversion_command(cmd)
#: A dictionary that maps filename extensions to functions which
#: themselves map arguments `old` and `new` (filenames) to a list of strings.
#: The list can then be passed to Popen to convert files with that
#: extension to png format.
Example 2
| Project: GraphicDesignPatternByPython Author: Relph1119 File: compare.py License: MIT License | 6 votes |
|
def get_file_hash(path, block_size=2 ** 20):
md5 = hashlib.md5()
with open(path, 'rb') as fd:
while True:
data = fd.read(block_size)
if not data:
break
md5.update(data)
if path.endswith('.pdf'):
from matplotlib import checkdep_ghostscript
md5.update(checkdep_ghostscript()[1].encode('utf-8'))
elif path.endswith('.svg'):
from matplotlib import checkdep_inkscape
md5.update(checkdep_inkscape().encode('utf-8'))
return md5.hexdigest()
Example 3
| Project: python3_ios Author: holzschu File: compare.py License: BSD 3-Clause "New" or "Revised" License | 6 votes |
|
def get_file_hash(path, block_size=2 ** 20):
md5 = hashlib.md5()
with open(path, 'rb') as fd:
while True:
data = fd.read(block_size)
if not data:
break
md5.update(data)
if path.endswith('.pdf'):
from matplotlib import checkdep_ghostscript
md5.update(checkdep_ghostscript()[1].encode('utf-8'))
elif path.endswith('.svg'):
from matplotlib import checkdep_inkscape
md5.update(checkdep_inkscape().encode('utf-8'))
return md5.hexdigest()
Example 4
| Project: coffeegrindsize Author: jgagneastro File: compare.py License: MIT License | 6 votes |
|
def get_file_hash(path, block_size=2 ** 20):
md5 = hashlib.md5()
with open(path, 'rb') as fd:
while True:
data = fd.read(block_size)
if not data:
break
md5.update(data)
if path.endswith('.pdf'):
from matplotlib import checkdep_ghostscript
md5.update(checkdep_ghostscript()[1].encode('utf-8'))
elif path.endswith('.svg'):
from matplotlib import checkdep_inkscape
md5.update(checkdep_inkscape().encode('utf-8'))
return md5.hexdigest()
Example 5
| Project: twitter-stock-recommendation Author: alvarobartt File: compare.py License: MIT License | 6 votes |
|
def get_file_hash(path, block_size=2 ** 20):
md5 = hashlib.md5()
with open(path, 'rb') as fd:
while True:
data = fd.read(block_size)
if not data:
break
md5.update(data)
if path.endswith('.pdf'):
from matplotlib import checkdep_ghostscript
md5.update(checkdep_ghostscript()[1].encode('utf-8'))
elif path.endswith('.svg'):
from matplotlib import checkdep_inkscape
md5.update(checkdep_inkscape().encode('utf-8'))
return md5.hexdigest()
Example 6
| Project: twitter-stock-recommendation Author: alvarobartt File: compare.py License: MIT License | 6 votes |
|
def _update_converter():
gs, gs_v = matplotlib.checkdep_ghostscript()
if gs_v is not None:
def cmd(old, new):
return [str(gs), '-q', '-sDEVICE=png16m', '-dNOPAUSE', '-dBATCH',
'-sOutputFile=' + new, old]
converter['pdf'] = make_external_conversion_command(cmd)
converter['eps'] = make_external_conversion_command(cmd)
if matplotlib.checkdep_inkscape() is not None:
converter['svg'] = _SVGConverter()
#: A dictionary that maps filename extensions to functions which
#: themselves map arguments `old` and `new` (filenames) to a list of strings.
#: The list can then be passed to Popen to convert files with that
#: extension to png format.
Example 7
| Project: Computable Author: ktraunmueller File: backend_ps.py License: MIT License | 5 votes |
|
def gs_exe(self):
"""
excutable name of ghostscript.
"""
try:
return self._cached["gs_exe"]
except KeyError:
pass
gs_exe, gs_version = checkdep_ghostscript()
if gs_exe is None:
gs_exe = 'gs'
self._cached["gs_exe"] = gs_exe
return gs_exe
Example 8
| Project: matplotlib-4-abaqus Author: Solid-Mechanics File: backend_ps.py License: MIT License | 5 votes |
|
def gs_exe(self):
"""
excutable name of ghostscript.
"""
try:
return self._cached["gs_exe"]
except KeyError:
pass
gs_exe, gs_version = checkdep_ghostscript()
if gs_exe is None:
gs_exe = 'gs'
self._cached["gs_exe"] = gs_exe
return gs_exe
Example 9
| Project: neural-network-animation Author: miloharper File: backend_ps.py License: MIT License | 5 votes |
|
def gs_exe(self):
"""
excutable name of ghostscript.
"""
try:
return self._cached["gs_exe"]
except KeyError:
pass
gs_exe, gs_version = checkdep_ghostscript()
if gs_exe is None:
gs_exe = 'gs'
self._cached["gs_exe"] = gs_exe
return gs_exe
Example 10
| Project: neural-network-animation Author: miloharper File: backend_pgf.py License: MIT License | 5 votes |
|
def make_pdf_to_png_converter():
"""
Returns a function that converts a pdf file to a png file.
"""
tools_available = []
# check for pdftocairo
try:
check_output(["pdftocairo", "-v"], stderr=subprocess.STDOUT)
tools_available.append("pdftocairo")
except:
pass
# check for ghostscript
gs, ver = mpl.checkdep_ghostscript()
if gs:
tools_available.append("gs")
# pick converter
if "pdftocairo" in tools_available:
def cairo_convert(pdffile, pngfile, dpi):
cmd = ["pdftocairo", "-singlefile", "-png",
"-r %d" % dpi, pdffile, os.path.splitext(pngfile)[0]]
# for some reason this doesn't work without shell
check_output(" ".join(cmd), shell=True, stderr=subprocess.STDOUT)
return cairo_convert
elif "gs" in tools_available:
def gs_convert(pdffile, pngfile, dpi):
cmd = [gs, '-dQUIET', '-dSAFER', '-dBATCH', '-dNOPAUSE', '-dNOPROMPT',
'-sDEVICE=png16m', '-dUseCIEColor', '-dTextAlphaBits=4',
'-dGraphicsAlphaBits=4', '-dDOINTERPOLATE', '-sOutputFile=%s' % pngfile,
'-r%d' % dpi, pdffile]
check_output(cmd, stderr=subprocess.STDOUT)
return gs_convert
else:
raise RuntimeError("No suitable pdf to png renderer found.")
Example 11
| Project: GraphicDesignPatternByPython Author: Relph1119 File: backend_ps.py License: MIT License | 5 votes |
|
def gs_exe(self):
"""
executable name of ghostscript.
"""
try:
return self._cached["gs_exe"]
except KeyError:
pass
gs_exe, gs_version = checkdep_ghostscript()
if gs_exe is None:
gs_exe = 'gs'
self._cached["gs_exe"] = str(gs_exe)
return str(gs_exe)
Example 12
| Project: GraphicDesignPatternByPython Author: Relph1119 File: backend_pgf.py License: MIT License | 5 votes |
|
def make_pdf_to_png_converter():
"""
Returns a function that converts a pdf file to a png file.
"""
tools_available = []
# check for pdftocairo
try:
subprocess.check_output(["pdftocairo", "-v"], stderr=subprocess.STDOUT)
tools_available.append("pdftocairo")
except OSError:
pass
# check for ghostscript
gs, ver = mpl.checkdep_ghostscript()
if gs:
tools_available.append("gs")
# pick converter
if "pdftocairo" in tools_available:
def cairo_convert(pdffile, pngfile, dpi):
cmd = ["pdftocairo", "-singlefile", "-png", "-r", "%d" % dpi,
pdffile, os.path.splitext(pngfile)[0]]
subprocess.check_output(cmd, stderr=subprocess.STDOUT)
return cairo_convert
elif "gs" in tools_available:
def gs_convert(pdffile, pngfile, dpi):
cmd = [gs,
'-dQUIET', '-dSAFER', '-dBATCH', '-dNOPAUSE', '-dNOPROMPT',
'-dUseCIEColor', '-dTextAlphaBits=4',
'-dGraphicsAlphaBits=4', '-dDOINTERPOLATE',
'-sDEVICE=png16m', '-sOutputFile=%s' % pngfile,
'-r%d' % dpi, pdffile]
subprocess.check_output(cmd, stderr=subprocess.STDOUT)
return gs_convert
else:
raise RuntimeError("No suitable pdf to png renderer found.")
Example 13
| Project: GraphicDesignPatternByPython Author: Relph1119 File: compare.py License: MIT License | 5 votes |
|
def __call__(self, orig, dest):
if not self._proc:
self._stdout = TemporaryFile()
self._proc = subprocess.Popen(
[matplotlib.checkdep_ghostscript.executable,
"-dNOPAUSE", "-sDEVICE=png16m"],
# As far as I can see, ghostscript never outputs to stderr.
stdin=subprocess.PIPE, stdout=subprocess.PIPE)
try:
self._read_until(b"\nGS")
except _ConverterError:
raise OSError("Failed to start Ghostscript")
def encode_and_escape(name):
return (os.fsencode(name)
.replace(b"\\", b"\\\\")
.replace(b"(", br"\(")
.replace(b")", br"\)"))
self._proc.stdin.write(
b"<< /OutputFile ("
+ encode_and_escape(dest)
+ b") >> setpagedevice ("
+ encode_and_escape(orig)
+ b") run flush\n")
self._proc.stdin.flush()
# GS> if nothing left on the stack; GS<n> if n items left on the stack.
err = self._read_until(b"GS")
stack = self._read_until(b">")
if stack or not os.path.exists(dest):
stack_size = int(stack[1:]) if stack else 0
self._proc.stdin.write(b"pop\n" * stack_size)
# Using the systemencoding should at least get the filenames right.
raise ImageComparisonFailure(
(err + b"GS" + stack + b">")
.decode(sys.getfilesystemencoding(), "replace"))
Example 14
| Project: GraphicDesignPatternByPython Author: Relph1119 File: compare.py License: MIT License | 5 votes |
|
def _update_converter():
gs, gs_v = matplotlib.checkdep_ghostscript()
if gs_v is not None:
converter['pdf'] = converter['eps'] = _GSConverter()
if matplotlib.checkdep_inkscape() is not None:
converter['svg'] = _SVGConverter()
#: A dictionary that maps filename extensions to functions which
#: themselves map arguments `old` and `new` (filenames) to a list of strings.
#: The list can then be passed to Popen to convert files with that
#: extension to png format.
Example 15
| Project: python3_ios Author: holzschu File: backend_ps.py License: BSD 3-Clause "New" or "Revised" License | 5 votes |
|
def gs_exe(self):
"""
executable name of ghostscript.
"""
try:
return self._cached["gs_exe"]
except KeyError:
pass
gs_exe, gs_version = checkdep_ghostscript()
if gs_exe is None:
gs_exe = 'gs'
self._cached["gs_exe"] = str(gs_exe)
return str(gs_exe)
Example 16
| Project: python3_ios Author: holzschu File: backend_pgf.py License: BSD 3-Clause "New" or "Revised" License | 5 votes |
|
def make_pdf_to_png_converter():
"""
Returns a function that converts a pdf file to a png file.
"""
tools_available = []
# check for pdftocairo
try:
subprocess.check_output(["pdftocairo", "-v"], stderr=subprocess.STDOUT)
tools_available.append("pdftocairo")
except OSError:
pass
# check for ghostscript
gs, ver = mpl.checkdep_ghostscript()
if gs:
tools_available.append("gs")
# pick converter
if "pdftocairo" in tools_available:
def cairo_convert(pdffile, pngfile, dpi):
cmd = ["pdftocairo", "-singlefile", "-png", "-r", "%d" % dpi,
pdffile, os.path.splitext(pngfile)[0]]
subprocess.check_output(cmd, stderr=subprocess.STDOUT)
return cairo_convert
elif "gs" in tools_available:
def gs_convert(pdffile, pngfile, dpi):
cmd = [gs,
'-dQUIET', '-dSAFER', '-dBATCH', '-dNOPAUSE', '-dNOPROMPT',
'-dUseCIEColor', '-dTextAlphaBits=4',
'-dGraphicsAlphaBits=4', '-dDOINTERPOLATE',
'-sDEVICE=png16m', '-sOutputFile=%s' % pngfile,
'-r%d' % dpi, pdffile]
subprocess.check_output(cmd, stderr=subprocess.STDOUT)
return gs_convert
else:
raise RuntimeError("No suitable pdf to png renderer found.")
Example 17
| Project: python3_ios Author: holzschu File: compare.py License: BSD 3-Clause "New" or "Revised" License | 5 votes |
|
def __call__(self, orig, dest):
if not self._proc:
self._stdout = TemporaryFile()
self._proc = subprocess.Popen(
[matplotlib.checkdep_ghostscript.executable,
"-dNOPAUSE", "-sDEVICE=png16m"],
# As far as I can see, ghostscript never outputs to stderr.
stdin=subprocess.PIPE, stdout=subprocess.PIPE)
try:
self._read_until(b"\nGS")
except _ConverterError:
raise OSError("Failed to start Ghostscript")
def encode_and_escape(name):
return (os.fsencode(name)
.replace(b"\\", b"\\\\")
.replace(b"(", br"\(")
.replace(b")", br"\)"))
self._proc.stdin.write(
b"<< /OutputFile ("
+ encode_and_escape(dest)
+ b") >> setpagedevice ("
+ encode_and_escape(orig)
+ b") run flush\n")
self._proc.stdin.flush()
# GS> if nothing left on the stack; GS<n> if n items left on the stack.
err = self._read_until(b"GS")
stack = self._read_until(b">")
if stack or not os.path.exists(dest):
stack_size = int(stack[1:]) if stack else 0
self._proc.stdin.write(b"pop\n" * stack_size)
# Using the systemencoding should at least get the filenames right.
raise ImageComparisonFailure(
(err + b"GS" + stack + b">")
.decode(sys.getfilesystemencoding(), "replace"))
Example 18
| Project: python3_ios Author: holzschu File: compare.py License: BSD 3-Clause "New" or "Revised" License | 5 votes |
|
def _update_converter():
gs, gs_v = matplotlib.checkdep_ghostscript()
if gs_v is not None:
converter['pdf'] = converter['eps'] = _GSConverter()
if matplotlib.checkdep_inkscape() is not None:
converter['svg'] = _SVGConverter()
#: A dictionary that maps filename extensions to functions which
#: themselves map arguments `old` and `new` (filenames) to a list of strings.
#: The list can then be passed to Popen to convert files with that
#: extension to png format.
Example 19
| Project: ImageFusion Author: pfchai File: backend_ps.py License: MIT License | 5 votes |
|
def gs_exe(self):
"""
excutable name of ghostscript.
"""
try:
return self._cached["gs_exe"]
except KeyError:
pass
gs_exe, gs_version = checkdep_ghostscript()
if gs_exe is None:
gs_exe = 'gs'
self._cached["gs_exe"] = gs_exe
return gs_exe
Example 20
| Project: ImageFusion Author: pfchai File: backend_pgf.py License: MIT License | 5 votes |
|
def make_pdf_to_png_converter():
"""
Returns a function that converts a pdf file to a png file.
"""
tools_available = []
# check for pdftocairo
try:
check_output(["pdftocairo", "-v"], stderr=subprocess.STDOUT)
tools_available.append("pdftocairo")
except:
pass
# check for ghostscript
gs, ver = mpl.checkdep_ghostscript()
if gs:
tools_available.append("gs")
# pick converter
if "pdftocairo" in tools_available:
def cairo_convert(pdffile, pngfile, dpi):
cmd = ["pdftocairo", "-singlefile", "-png",
"-r %d" % dpi, pdffile, os.path.splitext(pngfile)[0]]
# for some reason this doesn't work without shell
check_output(" ".join(cmd), shell=True, stderr=subprocess.STDOUT)
return cairo_convert
elif "gs" in tools_available:
def gs_convert(pdffile, pngfile, dpi):
cmd = [gs, '-dQUIET', '-dSAFER', '-dBATCH', '-dNOPAUSE', '-dNOPROMPT',
'-sDEVICE=png16m', '-dUseCIEColor', '-dTextAlphaBits=4',
'-dGraphicsAlphaBits=4', '-dDOINTERPOLATE', '-sOutputFile=%s' % pngfile,
'-r%d' % dpi, pdffile]
check_output(cmd, stderr=subprocess.STDOUT)
return gs_convert
else:
raise RuntimeError("No suitable pdf to png renderer found.")
Example 21
| Project: coffeegrindsize Author: jgagneastro File: backend_ps.py License: MIT License | 5 votes |
|
def gs_exe(self):
"""
executable name of ghostscript.
"""
try:
return self._cached["gs_exe"]
except KeyError:
pass
gs_exe, gs_version = checkdep_ghostscript()
if gs_exe is None:
gs_exe = 'gs'
self._cached["gs_exe"] = str(gs_exe)
return str(gs_exe)
Example 22
| Project: coffeegrindsize Author: jgagneastro File: backend_pgf.py License: MIT License | 5 votes |
|
def make_pdf_to_png_converter():
"""
Returns a function that converts a pdf file to a png file.
"""
tools_available = []
# check for pdftocairo
try:
subprocess.check_output(["pdftocairo", "-v"], stderr=subprocess.STDOUT)
tools_available.append("pdftocairo")
except OSError:
pass
# check for ghostscript
gs, ver = mpl.checkdep_ghostscript()
if gs:
tools_available.append("gs")
# pick converter
if "pdftocairo" in tools_available:
def cairo_convert(pdffile, pngfile, dpi):
cmd = ["pdftocairo", "-singlefile", "-png", "-r", "%d" % dpi,
pdffile, os.path.splitext(pngfile)[0]]
subprocess.check_output(cmd, stderr=subprocess.STDOUT)
return cairo_convert
elif "gs" in tools_available:
def gs_convert(pdffile, pngfile, dpi):
cmd = [gs,
'-dQUIET', '-dSAFER', '-dBATCH', '-dNOPAUSE', '-dNOPROMPT',
'-dUseCIEColor', '-dTextAlphaBits=4',
'-dGraphicsAlphaBits=4', '-dDOINTERPOLATE',
'-sDEVICE=png16m', '-sOutputFile=%s' % pngfile,
'-r%d' % dpi, pdffile]
subprocess.check_output(cmd, stderr=subprocess.STDOUT)
return gs_convert
else:
raise RuntimeError("No suitable pdf to png renderer found.")
Example 23
| Project: coffeegrindsize Author: jgagneastro File: compare.py License: MIT License | 5 votes |
|
def __call__(self, orig, dest):
if not self._proc:
self._stdout = TemporaryFile()
self._proc = subprocess.Popen(
[matplotlib.checkdep_ghostscript.executable,
"-dNOPAUSE", "-sDEVICE=png16m"],
# As far as I can see, ghostscript never outputs to stderr.
stdin=subprocess.PIPE, stdout=subprocess.PIPE)
try:
self._read_until(b"\nGS")
except _ConverterError:
raise OSError("Failed to start Ghostscript")
def encode_and_escape(name):
return (os.fsencode(name)
.replace(b"\\", b"\\\\")
.replace(b"(", br"\(")
.replace(b")", br"\)"))
self._proc.stdin.write(
b"<< /OutputFile ("
+ encode_and_escape(dest)
+ b") >> setpagedevice ("
+ encode_and_escape(orig)
+ b") run flush\n")
self._proc.stdin.flush()
# GS> if nothing left on the stack; GS<n> if n items left on the stack.
err = self._read_until(b"GS")
stack = self._read_until(b">")
if stack or not os.path.exists(dest):
stack_size = int(stack[1:]) if stack else 0
self._proc.stdin.write(b"pop\n" * stack_size)
# Using the systemencoding should at least get the filenames right.
raise ImageComparisonFailure(
(err + b"GS" + stack + b">")
.decode(sys.getfilesystemencoding(), "replace"))
Example 24
| Project: coffeegrindsize Author: jgagneastro File: compare.py License: MIT License | 5 votes |
|
def _update_converter():
gs, gs_v = matplotlib.checkdep_ghostscript()
if gs_v is not None:
converter['pdf'] = converter['eps'] = _GSConverter()
if matplotlib.checkdep_inkscape() is not None:
converter['svg'] = _SVGConverter()
#: A dictionary that maps filename extensions to functions which
#: themselves map arguments `old` and `new` (filenames) to a list of strings.
#: The list can then be passed to Popen to convert files with that
#: extension to png format.
Example 25
| Project: twitter-stock-recommendation Author: alvarobartt File: backend_ps.py License: MIT License | 5 votes |
|
def gs_exe(self):
"""
executable name of ghostscript.
"""
try:
return self._cached["gs_exe"]
except KeyError:
pass
gs_exe, gs_version = checkdep_ghostscript()
if gs_exe is None:
gs_exe = 'gs'
self._cached["gs_exe"] = str(gs_exe)
return str(gs_exe)
Example 26
| Project: twitter-stock-recommendation Author: alvarobartt File: backend_pgf.py License: MIT License | 5 votes |
|
def make_pdf_to_png_converter():
"""
Returns a function that converts a pdf file to a png file.
"""
tools_available = []
# check for pdftocairo
try:
check_output([str("pdftocairo"), "-v"], stderr=subprocess.STDOUT)
tools_available.append("pdftocairo")
except:
pass
# check for ghostscript
gs, ver = mpl.checkdep_ghostscript()
if gs:
tools_available.append("gs")
# pick converter
if "pdftocairo" in tools_available:
def cairo_convert(pdffile, pngfile, dpi):
cmd = [str("pdftocairo"), "-singlefile", "-png", "-r", "%d" % dpi,
pdffile, os.path.splitext(pngfile)[0]]
check_output(cmd, stderr=subprocess.STDOUT)
return cairo_convert
elif "gs" in tools_available:
def gs_convert(pdffile, pngfile, dpi):
cmd = [str(gs),
'-dQUIET', '-dSAFER', '-dBATCH', '-dNOPAUSE', '-dNOPROMPT',
'-dUseCIEColor', '-dTextAlphaBits=4',
'-dGraphicsAlphaBits=4', '-dDOINTERPOLATE',
'-sDEVICE=png16m', '-sOutputFile=%s' % pngfile,
'-r%d' % dpi, pdffile]
check_output(cmd, stderr=subprocess.STDOUT)
return gs_convert
else:
raise RuntimeError("No suitable pdf to png renderer found.")
