What version of Pymol are you using? Pymol ships with it's own version of python that is separate from your system python.
In the pymol command line, run:

import sys
print sys.version

That will tell you what python version pymol is using.

HTH,
Matt

On 01/29/2016 08:55 AM, Guilherme Souza wrote:
I've searched about this kind of error, and in every site I look, it seems that it is caused by using Python <= 2.5, which is not my case. Is there any chance that my PyMOL is using and older version of Python?

2016-01-29 11:46 GMT-02:00 Guilherme Souza <gsouza...@gmail.com <mailto:gsouza...@gmail.com>>:

    Okay. I did it, and kind of got the same error:

    PyMOL>run colorbyrmsd.py
    Traceback (most recent call last):
      File "C:\Program Files
    (x86)\PyMOL\PyMOL/modules\pymol\parser.py", line 338, in parse
    parsing.run_file(path,self.pymol_names,self.pymol_names)
      File "C:\Program Files
    (x86)\PyMOL\PyMOL/modules\pymol\parsing.py", line 455, in run_file
        execfile(file,global_ns,local_ns)
    SyntaxError: future feature print_function is not defined
    (colorbyrmsd.py, line 10)

    2016-01-29 11:41 GMT-02:00 Matthew Baumgartner <mp...@pitt.edu
    <mailto:mp...@pitt.edu>>:

        Hi,
        You run the command 'run colorbyrmsd.py' in the Pymol command
        line. That initializes the function in pymol. If everything
        goes well, you shouldn't see anything (no errors). Then to use
        the command, type just 'colorbyrmsd [args...]' into the
        command line.

        You can see the usage instructions in the wiki.

        HTH,

        Matt Baumgartner


        On 01/29/2016 08:36 AM, Guilherme Souza wrote:
        I'm sorry.. Where exactly am I supposed to type 'run
        colorbyrmsd.py'?
        And should I expect to see my both protein structures colored
        in the PyMOL interface?

        Thank you!

        2016-01-29 11:36 GMT-02:00 Guilherme Souza
        <gsouza...@gmail.com <mailto:gsouza...@gmail.com>>:

            I'm sorry.. Where exactly am I supposed to type 'run
            colorbyrmsd.py'?
            And should I expect to see my both protein structures
            colored in the PyMOL interface?

            2016-01-29 11:35 GMT-02:00 Guilherme Souza
            <gsouza...@gmail.com <mailto:gsouza...@gmail.com>>:

                I'm sorry.. Where exactly am I supposed to type 'run
                colorbyrmsd.py'?
                And should I expect to see my both protein structures
                colored in the PyMOL interface?

                Thank you!

                2016-01-29 11:09 GMT-02:00 Schubert, Carsten [JRDUS]
                <cschu...@its.jnj.com <mailto:cschu...@its.jnj.com>>:

                    Hi Guilherme,

                    the script is not a plugin, so you cannot install
                    it since it is missing some software
                    infrastructure to work as a plugin. Simply put
                    the script into the directory you are working in
                    and run it via ‘run colorbyrmsd.py’ . This will
                    add the command to the scripting interface and
                    you can run the command like any other pymol
                    command. See the wiki for the details in that
                    regards.

                    HTH

                    Carsten

                    *From:*Guilherme Souza
                    [mailto:gsouza...@gmail.com
                    <mailto:gsouza...@gmail.com>]
                    *Sent:* Friday, January 29, 2016 7:07 AM
                    *To:* pymol-users@lists.sourceforge.net
                    <mailto:pymol-users@lists.sourceforge.net>
                    *Subject:* [PyMOL] ColorByRMSD script

                    Hi.

                    I'm a starter in PyMOL, and I'm trying to use
                    this script, ColorByRMSD
                    (http://www.pymolwiki.org/index.php/ColorByRMSD).
                    However, I'm getting the following error message,
                    when I initialize PyMOL after installing the plugin:

                    Exception in plugin 'colorbyrmsd' -- Traceback
                    follows...

                    Traceback (most recent call last):

                    File "C:\Program Files
                    (x86)\PyMOL\PyMOL/modules\pmg_tk\PMGApp.py", line
                    313, in initializePlugins

                    __builtin__.__import__(mod_name)

                    SyntaxError: future feature print_function is not
                    defined (colorbyrmsd.py, line 10)

                    Error: unable to initialize plugin 'colorbyrmsd'.

                    I'm using Python 2.7, and I've already checked
                    '__future__' module, and 'print_function' is
                    there, so I don't know what could be causing this.

                    I'd be glad if anyone could give me a help.

                    Thank you.






        
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