Hi,

I try to print multiline legends for molecules in a grid and use the following code from notebook


  from rdkit import Chem
  from rdkit.Chem import Draw
  # from rdkit.Chem.Draw import IPythonConsole

  mols = [Chem.MolFromSmiles(s) for s in ["CCC", "CCCCC"]]
  legends = ["1\nCCC", "2\nCCCCC"]
Draw.MolsToGridImage(mols, molsPerRow=5, subImgSize=(200,200), legends=legends)

it returns error: AttributeError: module 'string' has no attribute 'replace'(full stack is below)

If I uncomment IPythonConsole import then it returns the picture with labels, but with spaces instead of new line symbols.

  What can I do in this situation? RDKit 2016.03.2

Kind regards,
Pavel.


---------------------------------------------------------------------------
AttributeError                             Traceback (most recent call last)
<ipython-input-2-684f4abceace> in<module>() 1 mols = [Chem.MolFromSmiles(s) for s in ["CCC", "CCCCC"]]2 legends = ["1\nCCC", "2\nCCCCC"]----> 3p = Draw.MolsToGridImage(mols, molsPerRow=5, subImgSize=(200,200), legends=legends)/home/pavel/anaconda3/envs/my-rdkit-env/lib/python3.5/site-packages/rdkit/Chem/Draw/__init__.py in MolsToGridImage(mols, molsPerRow, subImgSize, legends, highlightAtomLists, useSVG, **kwargs) 387 else:388 return _MolsToGridImage(mols,molsPerRow=molsPerRow,subImgSize=subImgSize, --> 389legends=legends, highlightAtomLists=highlightAtomLists, **kwargs) 390 391 def ReactionToImage(rxn, subImgSize=(200,200),**kwargs):/home/pavel/anaconda3/envs/my-rdkit-env/lib/python3.5/site-packages/rdkit/Chem/Draw/__init__.py in _MolsToGridImage(mols, molsPerRow, subImgSize, legends, highlightAtomLists, **kwargs) 334 highlights=highlightAtomLists[i]335 if mol is not None:--> 336img = _moltoimg(mol,subImgSize,highlights,legends[i],**kwargs)337 res.paste(img,(col*subImgSize[0],row*subImgSize[1]))338 return res/home/pavel/anaconda3/envs/my-rdkit-env/lib/python3.5/site-packages/rdkit/Chem/Draw/__init__.py in _moltoimg(mol, sz, highlights, legend, **kwargs) 302 if not hasattr(rdMolDraw2D,'MolDraw2DCairo'):303 img = MolToImage(mol,sz,legend=legend,highlightAtoms=highlights, --> 304**kwargs) 305 else:306 nmol = rdMolDraw2D.PrepareMolForDrawing(mol,kekulize=kwargs.get('kekulize',True))/home/pavel/anaconda3/envs/my-rdkit-env/lib/python3.5/site-packages/rdkit/Chem/Draw/__init__.py in MolToImage(mol, size, kekulize, wedgeBonds, fitImage, options, canvas, **kwargs) 132 # color=(0,0,1),fill=False,stroke=True)133 font=Font(face='sans',size=12)--> 134canvas.addCanvasText(legend,pos,font)135 136 if kwargs.get('returnCanvas',False):/home/pavel/anaconda3/envs/my-rdkit-env/lib/python3.5/site-packages/rdkit/Chem/Draw/spingCanvas.py in addCanvasText(self, text, pos, font, color, **kwargs) 72 labelP = pos[0]-txtWidth/2+offset,pos[1]+txtHeight/273 color = convertColor(color)---> 74self.canvas.drawString(text,labelP[0],labelP[1],font,color=color)75 return (bw,bh,offset)76 /home/pavel/anaconda3/envs/my-rdkit-env/lib/python3.5/site-packages/rdkit/sping/PIL/pidPIL.py in drawString(self, s, x, y, font, color, angle, **kwargs) 313 if '\n' in s or '\r' in s:314 self.drawMultiLineString(s, x,y, font, color, angle, --> 315**kwargs) 316 return317 if not font: font = self.defaultFont/home/pavel/anaconda3/envs/my-rdkit-env/lib/python3.5/site-packages/rdkit/sping/pid.py in drawMultiLineString(self, s, x, y, font, color, angle, **kwargs) 393 dy = h * math.cos(angle*math.pi/180.0)394 dx = h * math.sin(angle*math.pi/180.0)--> 395s = string.replace(s, '\r\n', '\n')396 s = string.replace(s, '\n\r', '\n')397 s = string.replace(s, '\r', '\n')AttributeError: module 'string' has no attribute 'replace'


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