pydot

I can't get pip to install the current version of pydot (1.0.28). Though yolk and PyPi both report this version as the available, current one, pip -U pydot gives me Requirement already up-to-date: pydot in /Library/Python/2.7/site-packages Requirement already up-to-date: pyparsing in /Library/Python/2.7/site-packages (from pydot) Requirement already up-to-date: setuptools in /Library/Python/2.7/site-packages (from pydot) forcing the current version with pip -U pydot ==1.0.28 gives me Downloading/unpacking pydot==1.0.28 Could not find a version that satisfies the requirement pydot==1.0.28 (from

I have trained a decision tree (Python dictionary) as below. Now I am trying to plot it using pydot . In defining each node of the tree (pydot graph), I appoint it a unique (and verbose) name and a brief label. My problem is that in the resulting figure that I get by writing to a .png, I see the verbose node names and not the node labels . I have followed the answer by @Martijn Pieters here . I do not know what I am missing, any ideas? import pydot tree= {'salary': {'41k-45k': 'junior', '46k-50k': {'department': {'marketing': 'senior', 'sales': 'senior', 'systems': 'junior'}}, '36k-40k':

I'm trying to visualize my DecisionTree, but getting the error The code is: X = [i[1:] for i in dataset]#attribute y = [i[0] for i in dataset] clf = tree.DecisionTreeClassifier() dot_data = StringIO() tree.export_graphviz(clf.fit(train_X, train_y), out_file=dot_data) graph = pydot.graph_from_dot_data(dot_data.getvalue()) graph.write_pdf("tree.pdf") And the error is Traceback (most recent call last): if data.startswith(codecs.BOM_UTF8): TypeError: startswith first arg must be str or a tuple of str, not bytes Can anyone explain me whats the problem? Thank you a lot! I had the same exact problem

I try to run this example for decision tree learning, but get the following error message: File "coco.py", line 18, in graph.write_pdf("iris.pdf") File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pydot.py", line 1602, in lambda path, f=frmt, prog=self.prog : self.write(path, format=f, prog=prog)) File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pydot.py", line 1696, in write dot_fd.write(self.create(prog, format)) File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pydot.py", line 1727, in

I want to be able to create graphical decision trees in Python, and I am currently trying to install both pydot and graphviz . I am using Anaconda as my environment (along with Spyder), and have tried to run the following lines of code conda install -c https://conda.binstar.org/t/TOKEN/j14r pydot with the result Error: unknown host: http://repo.continuum.io/pkgs/pro/win-32/ Error: unknown host: http://repo.continuum.io/pkgs/free/win-32/ Error: unknown host: https://conda.binstar.org/t/TOKEN/j14r/win-32/ Error: No packages found matching: pydot I have also tried using pip install pydot and pip