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pgf can not write to BytesIO [back port to 1.4.x] #3982

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Merged
merged 2 commits into from
Jan 9, 2015
Merged

pgf can not write to BytesIO [back port to 1.4.x] #3982

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d8965dd
backend_pgf: Partial support of file-like streams without filenames (…
pwuertz Jan 8, 2015
9fcd026
Fixed writing pgf code to streams.
pwuertz Jan 9, 2015
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backend_pgf: Partial support of file-like streams without filenames (f… 
…ixes #3982)
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@pwuertz
pwuertz committed Jan 9, 2015
commit d8965dd84d039f4cff5578ade372f94806cb7578
12 changes: 6 additions & 6 deletions lib/matplotlib/backends/backend_pgf.py
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Original file line number Diff line number Diff line change
Expand Up @@ -431,7 +431,10 @@ def __init__(self, figure, fh, dummy=False):
self.__dict__[m] = nop
else:
# if fh does not belong to a filename, deactivate draw_image
if not os.path.exists(fh.name):
if not hasattr(fh, 'name') or not os.path.exists(fh.name):
warnings.warn("streamed pgf-code does not support raster "
"graphics, consider using the pgf-to-pdf option",
UserWarning)
self.__dict__["draw_image"] = lambda *args, **kwargs: None

def draw_markers(self, gc, marker_path, marker_trans, path, trans, rgbFace=None):
Expand Down Expand Up @@ -835,11 +838,8 @@ def print_pgf(self, fname_or_fh, *args, **kwargs):
with codecs.open(fname_or_fh, "w", encoding="utf-8") as fh:
self._print_pgf_to_fh(fh, *args, **kwargs)
elif is_writable_file_like(fname_or_fh):
if not os.path.exists(fname_or_fh.name):
warnings.warn("streamed pgf-code does not support raster "
"graphics, consider using the pgf-to-pdf option",
UserWarning)
self._print_pgf_to_fh(fname_or_fh, *args, **kwargs)
fh = codecs.getwriter("utf-8")(fname_or_fh)
self._print_pgf_to_fh(fh, *args, **kwargs)
else:
raise ValueError("filename must be a path")

Expand Down