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<!doctype html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><head><title>Python: module pybel</title>
</head><body bgcolor="#f0f0f8">
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="heading">
<tr bgcolor="#7799ee">
<td valign=bottom> <br>
<font color="#ffffff" face="helvetica, arial"> <br><big><big><strong>pybel</strong></big></big></font></td
><td align=right valign=bottom
><font color="#ffffff" face="helvetica, arial"><br></font></td></tr></table>
<p><tt>pybel - A Python module for accessing OpenBabel<br>
<br>
Global variables:<br>
ob - the underlying SWIG bindings for OpenBabel<br>
informats - a dictionary of supported input formats<br>
outformats - a dictionary of supported output formats<br>
descs - a list of supported descriptors<br>
fps - a list of supported fingerprint types<br>
forcefields - a list of supported forcefields</tt></p>
<p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#aa55cc">
<td colspan=3 valign=bottom> <br>
<font color="#fffff" face="helvetica, arial"><big><strong>Modules</strong></big></font></td></tr>
<tr><td bgcolor="#aa55cc"><tt> </tt></td><td> </td>
<td width="100%"><table width="100%" summary="list"><tr><td width="25%" valign=top><a href="Image.html">Image</a><br>
<a href="math.html">math</a><br>
</td><td width="25%" valign=top><a href="openbabel.html">openbabel</a><br>
<a href="os.html">os</a><br>
</td><td width="25%" valign=top><a href="ImageTk.html">ImageTk</a><br>
<a href="tempfile.html">tempfile</a><br>
</td><td width="25%" valign=top><a href="Tkinter.html">Tkinter</a><br>
</td></tr></table></td></tr></table><p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#ee77aa">
<td colspan=3 valign=bottom> <br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Classes</strong></big></font></td></tr>
<tr><td bgcolor="#ee77aa"><tt> </tt></td><td> </td>
<td width="100%"><dl>
<dt><font face="helvetica, arial"><a href="__builtin__.html#object">__builtin__.object</a>
</font></dt><dd>
<dl>
<dt><font face="helvetica, arial"><a href="pybel.html#Atom">Atom</a>
</font></dt><dt><font face="helvetica, arial"><a href="pybel.html#Fingerprint">Fingerprint</a>
</font></dt><dt><font face="helvetica, arial"><a href="pybel.html#Molecule">Molecule</a>
</font></dt><dt><font face="helvetica, arial"><a href="pybel.html#MoleculeData">MoleculeData</a>
</font></dt><dt><font face="helvetica, arial"><a href="pybel.html#Outputfile">Outputfile</a>
</font></dt><dt><font face="helvetica, arial"><a href="pybel.html#Smarts">Smarts</a>
</font></dt></dl>
</dd>
</dl>
<p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#ffc8d8">
<td colspan=3 valign=bottom> <br>
<font color="#000000" face="helvetica, arial"><a name="Atom">class <strong>Atom</strong></a>(<a href="__builtin__.html#object">__builtin__.object</a>)</font></td></tr>
<tr bgcolor="#ffc8d8"><td rowspan=2><tt> </tt></td>
<td colspan=2><tt>Represent a Pybel atom.<br>
<br>
Required parameter:<br>
OBAtom -- an Open Babel OBAtom<br>
<br>
Attributes:<br>
atomicmass, atomicnum, cidx, coords, coordidx, exactmass,<br>
formalcharge, heavyvalence, heterovalence, hyb, idx,<br>
implicitvalence, isotope, partialcharge, spin, type,<br>
valence, vector.<br>
<br>
(refer to the Open Babel library documentation for more info).<br>
<br>
The original Open Babel atom can be accessed using the attribute:<br>
OBAtom<br> </tt></td></tr>
<tr><td> </td>
<td width="100%">Methods defined here:<br>
<dl><dt><a name="Atom-__init__"><strong>__init__</strong></a>(self, OBAtom)</dt></dl>
<dl><dt><a name="Atom-__str__"><strong>__str__</strong></a>(self)</dt></dl>
<hr>
Properties defined here:<br>
<dl><dt><strong>atomicmass</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = atomicmass(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>atomicnum</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = atomicnum(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>cidx</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = cidx(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>coordidx</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = coordidx(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>coords</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = coords(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>exactmass</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = exactmass(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>formalcharge</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = formalcharge(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>heavyvalence</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = heavyvalence(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>heterovalence</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = heterovalence(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>hyb</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = hyb(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>idx</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = idx(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>implicitvalence</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = implicitvalence(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>isotope</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = isotope(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>partialcharge</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = partialcharge(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>spin</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = spin(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>type</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = type(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>valence</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = valence(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>vector</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = vector(self)</dt></dl>
</dd>
</dl>
<hr>
Data and other attributes defined here:<br>
<dl><dt><strong>__dict__</strong> = <dictproxy object><dd><tt>dictionary for instance variables (if defined)</tt></dl>
<dl><dt><strong>__weakref__</strong> = <attribute '__weakref__' of 'Atom' objects><dd><tt>list of weak references to the <a href="__builtin__.html#object">object</a> (if defined)</tt></dl>
</td></tr></table> <p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#ffc8d8">
<td colspan=3 valign=bottom> <br>
<font color="#000000" face="helvetica, arial"><a name="Fingerprint">class <strong>Fingerprint</strong></a>(<a href="__builtin__.html#object">__builtin__.object</a>)</font></td></tr>
<tr bgcolor="#ffc8d8"><td rowspan=2><tt> </tt></td>
<td colspan=2><tt>A Molecular <a href="#Fingerprint">Fingerprint</a>.<br>
<br>
Required parameters:<br>
fingerprint -- a vector calculated by OBFingerprint.FindFingerprint()<br>
<br>
Attributes:<br>
fp -- the underlying fingerprint <a href="__builtin__.html#object">object</a><br>
bits -- a list of bits set in the <a href="#Fingerprint">Fingerprint</a><br>
<br>
Methods:<br>
The "|" operator can be used to calculate the Tanimoto coeff. For example,<br>
given two Fingerprints 'a', and 'b', the Tanimoto coefficient is given by:<br>
tanimoto = a | b<br> </tt></td></tr>
<tr><td> </td>
<td width="100%">Methods defined here:<br>
<dl><dt><a name="Fingerprint-__init__"><strong>__init__</strong></a>(self, fingerprint)</dt></dl>
<dl><dt><a name="Fingerprint-__or__"><strong>__or__</strong></a>(self, other)</dt></dl>
<dl><dt><a name="Fingerprint-__str__"><strong>__str__</strong></a>(self)</dt></dl>
<hr>
Properties defined here:<br>
<dl><dt><strong>bits</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = bits(self)</dt></dl>
</dd>
</dl>
<hr>
Data and other attributes defined here:<br>
<dl><dt><strong>__dict__</strong> = <dictproxy object><dd><tt>dictionary for instance variables (if defined)</tt></dl>
<dl><dt><strong>__weakref__</strong> = <attribute '__weakref__' of 'Fingerprint' objects><dd><tt>list of weak references to the <a href="__builtin__.html#object">object</a> (if defined)</tt></dl>
</td></tr></table> <p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#ffc8d8">
<td colspan=3 valign=bottom> <br>
<font color="#000000" face="helvetica, arial"><a name="Molecule">class <strong>Molecule</strong></a>(<a href="__builtin__.html#object">__builtin__.object</a>)</font></td></tr>
<tr bgcolor="#ffc8d8"><td rowspan=2><tt> </tt></td>
<td colspan=2><tt>Represent a Pybel <a href="#Molecule">Molecule</a>.<br>
<br>
Required parameter:<br>
OBMol -- an Open Babel OBMol or any type of cinfony <a href="#Molecule">Molecule</a><br>
<br>
Attributes:<br>
atoms, charge, conformers, data, dim, energy, exactmass, formula, <br>
molwt, spin, sssr, title, unitcell.<br>
(refer to the Open Babel library documentation for more info).<br>
<br>
Methods:<br>
<a href="#Molecule-addh">addh</a>(), <a href="#Molecule-calcfp">calcfp</a>(), <a href="#Molecule-calcdesc">calcdesc</a>(), <a href="#Molecule-draw">draw</a>(), <a href="#Molecule-localopt">localopt</a>(), <a href="#Molecule-make3D">make3D</a>(), <a href="#Molecule-removeh">removeh</a>(),<br>
<a href="#Molecule-write">write</a>() <br>
<br>
The underlying Open Babel molecule can be accessed using the attribute:<br>
OBMol<br> </tt></td></tr>
<tr><td> </td>
<td width="100%">Methods defined here:<br>
<dl><dt><a name="Molecule-__init__"><strong>__init__</strong></a>(self, OBMol)</dt></dl>
<dl><dt><a name="Molecule-__iter__"><strong>__iter__</strong></a>(self)</dt><dd><tt>Iterate over the Atoms of the <a href="#Molecule">Molecule</a>.<br>
<br>
This allows constructions such as the following:<br>
for atom in mymol:<br>
print atom</tt></dd></dl>
<dl><dt><a name="Molecule-__str__"><strong>__str__</strong></a>(self)</dt></dl>
<dl><dt><a name="Molecule-addh"><strong>addh</strong></a>(self)</dt><dd><tt>Add hydrogens.</tt></dd></dl>
<dl><dt><a name="Molecule-calcdesc"><strong>calcdesc</strong></a>(self, descnames<font color="#909090">=[]</font>)</dt><dd><tt>Calculate descriptor values.<br>
<br>
Optional parameter:<br>
descnames -- a list of names of descriptors<br>
<br>
If descnames is not specified, all available descriptors are<br>
calculated. See the descs variable for a list of available<br>
descriptors.</tt></dd></dl>
<dl><dt><a name="Molecule-calcfp"><strong>calcfp</strong></a>(self, fptype<font color="#909090">='FP2'</font>)</dt><dd><tt>Calculate a molecular fingerprint.<br>
<br>
Optional parameters:<br>
fptype -- the fingerprint type (default is "FP2"). See the<br>
fps variable for a list of of available fingerprint<br>
types.</tt></dd></dl>
<dl><dt><a name="Molecule-draw"><strong>draw</strong></a>(self, show<font color="#909090">=True</font>, filename<font color="#909090">=None</font>, update<font color="#909090">=False</font>, usecoords<font color="#909090">=False</font>)</dt><dd><tt>Create a 2D depiction of the molecule.<br>
<br>
Optional parameters:<br>
show -- display on screen (default is True)<br>
filename -- write to file (default is None)<br>
update -- update the coordinates of the atoms to those<br>
determined by the structure diagram generator<br>
(default is False)<br>
usecoords -- don't calculate 2D coordinates, just use<br>
the current coordinates (default is False)<br>
<br>
OASA is used for 2D coordinate generation and depiction. Tkinter and<br>
Python Imaging Library are required for image display.</tt></dd></dl>
<dl><dt><a name="Molecule-localopt"><strong>localopt</strong></a>(self, forcefield<font color="#909090">='mmff94'</font>, steps<font color="#909090">=500</font>)</dt><dd><tt>Locally optimize the coordinates.<br>
<br>
Optional parameters:<br>
forcefield -- default is "mmff94". See the forcefields variable<br>
for a list of available forcefields.<br>
steps -- default is 500<br>
<br>
If the molecule does not have any coordinates, <a href="#Molecule-make3D">make3D</a>() is<br>
called before the optimization. Note that the molecule needs<br>
to have explicit hydrogens. If not, call <a href="#Molecule-addh">addh</a>().</tt></dd></dl>
<dl><dt><a name="Molecule-make3D"><strong>make3D</strong></a>(self, forcefield<font color="#909090">='mmff94'</font>, steps<font color="#909090">=50</font>)</dt><dd><tt>Generate 3D coordinates.<br>
<br>
Optional parameters:<br>
forcefield -- default is "mmff94". See the forcefields variable<br>
for a list of available forcefields.<br>
steps -- default is 50<br>
<br>
Once coordinates are generated, hydrogens are added and a quick<br>
local optimization is carried out with 50 steps and the<br>
MMFF94 forcefield. Call <a href="#Molecule-localopt">localopt</a>() if you want<br>
to improve the coordinates further.</tt></dd></dl>
<dl><dt><a name="Molecule-removeh"><strong>removeh</strong></a>(self)</dt><dd><tt>Remove hydrogens.</tt></dd></dl>
<dl><dt><a name="Molecule-write"><strong>write</strong></a>(self, format<font color="#909090">='smi'</font>, filename<font color="#909090">=None</font>, overwrite<font color="#909090">=False</font>)</dt><dd><tt>Write the molecule to a file or return a string.<br>
<br>
Optional parameters:<br>
format -- see the informats variable for a list of available<br>
output formats (default is "smi")<br>
filename -- default is None<br>
overwite -- if the output file already exists, should it<br>
be overwritten? (default is False)<br>
<br>
If a filename is specified, the result is written to a file.<br>
Otherwise, a string is returned containing the result.<br>
<br>
To write multiple molecules to the same file you should use<br>
the <a href="#Outputfile">Outputfile</a> class.</tt></dd></dl>
<hr>
Properties defined here:<br>
<dl><dt><strong>atoms</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = atoms(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>charge</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = charge(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>conformers</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = conformers(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>data</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = data(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>dim</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = dim(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>energy</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = energy(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>exactmass</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = exactmass(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>formula</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = formula(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>molwt</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = molwt(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>spin</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = spin(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>sssr</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = sssr(self)</dt></dl>
</dd>
</dl>
<dl><dt><strong>title</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = _gettitle(self)</dt></dl>
</dd>
<dd><dl><dt><a name="-<em>set</em>"><strong><em>set</em></strong></a> = _settitle(self, val)</dt></dl>
</dd>
</dl>
<dl><dt><strong>unitcell</strong></dt>
<dd><dl><dt><a name="-<em>get</em>"><strong><em>get</em></strong></a> = unitcell(self)</dt></dl>
</dd>
</dl>
<hr>
Data and other attributes defined here:<br>
<dl><dt><strong>__dict__</strong> = <dictproxy object><dd><tt>dictionary for instance variables (if defined)</tt></dl>
<dl><dt><strong>__weakref__</strong> = <attribute '__weakref__' of 'Molecule' objects><dd><tt>list of weak references to the <a href="__builtin__.html#object">object</a> (if defined)</tt></dl>
</td></tr></table> <p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#ffc8d8">
<td colspan=3 valign=bottom> <br>
<font color="#000000" face="helvetica, arial"><a name="MoleculeData">class <strong>MoleculeData</strong></a>(<a href="__builtin__.html#object">__builtin__.object</a>)</font></td></tr>
<tr bgcolor="#ffc8d8"><td rowspan=2><tt> </tt></td>
<td colspan=2><tt>Store molecule data in a dictionary-type <a href="__builtin__.html#object">object</a><br>
<br>
Required parameters:<br>
obmol -- an Open Babel OBMol <br>
<br>
Methods and accessor methods are like those of a dictionary except<br>
that the data is retrieved on-the-fly from the underlying OBMol.<br>
<br>
Example:<br>
>>> mol = <a href="#-readfile">readfile</a>("sdf", 'head.sdf').next()<br>
>>> data = mol.data<br>
>>> print data<br>
{'Comment': 'CORINA 2.61 0041 25.10.2001', 'NSC': '1'}<br>
>>> print len(data), data.<a href="#MoleculeData-keys">keys</a>(), data.<a href="#MoleculeData-has_key">has_key</a>("NSC")<br>
2 ['Comment', 'NSC'] True<br>
>>> print data['Comment']<br>
CORINA 2.61 0041 25.10.2001<br>
>>> data['Comment'] = 'This is a new comment'<br>
>>> for k,v in data.<a href="#MoleculeData-iteritems">iteritems</a>():<br>
... print k, "-->", v<br>
Comment --> This is a new comment<br>
NSC --> 1<br>
>>> del data['NSC']<br>
>>> print len(data), data.<a href="#MoleculeData-keys">keys</a>(), data.<a href="#MoleculeData-has_key">has_key</a>("NSC")<br>
1 ['Comment'] False<br> </tt></td></tr>
<tr><td> </td>
<td width="100%">Methods defined here:<br>
<dl><dt><a name="MoleculeData-__contains__"><strong>__contains__</strong></a>(self, key)</dt></dl>
<dl><dt><a name="MoleculeData-__delitem__"><strong>__delitem__</strong></a>(self, key)</dt></dl>
<dl><dt><a name="MoleculeData-__getitem__"><strong>__getitem__</strong></a>(self, key)</dt></dl>
<dl><dt><a name="MoleculeData-__init__"><strong>__init__</strong></a>(self, obmol)</dt></dl>
<dl><dt><a name="MoleculeData-__iter__"><strong>__iter__</strong></a>(self)</dt></dl>
<dl><dt><a name="MoleculeData-__len__"><strong>__len__</strong></a>(self)</dt></dl>
<dl><dt><a name="MoleculeData-__repr__"><strong>__repr__</strong></a>(self)</dt></dl>
<dl><dt><a name="MoleculeData-__setitem__"><strong>__setitem__</strong></a>(self, key, value)</dt></dl>
<dl><dt><a name="MoleculeData-clear"><strong>clear</strong></a>(self)</dt></dl>
<dl><dt><a name="MoleculeData-has_key"><strong>has_key</strong></a>(self, key)</dt></dl>
<dl><dt><a name="MoleculeData-items"><strong>items</strong></a>(self)</dt></dl>
<dl><dt><a name="MoleculeData-iteritems"><strong>iteritems</strong></a>(self)</dt></dl>
<dl><dt><a name="MoleculeData-keys"><strong>keys</strong></a>(self)</dt></dl>
<dl><dt><a name="MoleculeData-update"><strong>update</strong></a>(self, dictionary)</dt></dl>
<dl><dt><a name="MoleculeData-values"><strong>values</strong></a>(self)</dt></dl>
<hr>
Data and other attributes defined here:<br>
<dl><dt><strong>__dict__</strong> = <dictproxy object><dd><tt>dictionary for instance variables (if defined)</tt></dl>
<dl><dt><strong>__weakref__</strong> = <attribute '__weakref__' of 'MoleculeData' objects><dd><tt>list of weak references to the <a href="__builtin__.html#object">object</a> (if defined)</tt></dl>
</td></tr></table> <p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#ffc8d8">
<td colspan=3 valign=bottom> <br>
<font color="#000000" face="helvetica, arial"><a name="Outputfile">class <strong>Outputfile</strong></a>(<a href="__builtin__.html#object">__builtin__.object</a>)</font></td></tr>
<tr bgcolor="#ffc8d8"><td rowspan=2><tt> </tt></td>
<td colspan=2><tt>Represent a file to which *output* is to be sent.<br>
<br>
Although it's possible to write a single molecule to a file by<br>
calling the <a href="#Outputfile-write">write</a>() method of a molecule, if multiple molecules<br>
are to be written to the same file you should use the <a href="#Outputfile">Outputfile</a><br>
class.<br>
<br>
Required parameters:<br>
format - see the outformats variable for a list of available<br>
output formats<br>
filename<br>
<br>
Optional parameters:<br>
overwrite -- if the output file already exists, should it<br>
be overwritten? (default is False)<br>
<br>
Methods:<br>
<a href="#Outputfile-write">write</a>(molecule)<br>
<a href="#Outputfile-close">close</a>()<br> </tt></td></tr>
<tr><td> </td>
<td width="100%">Methods defined here:<br>
<dl><dt><a name="Outputfile-__init__"><strong>__init__</strong></a>(self, format, filename, overwrite<font color="#909090">=False</font>)</dt></dl>
<dl><dt><a name="Outputfile-close"><strong>close</strong></a>(self)</dt><dd><tt>Close the <a href="#Outputfile">Outputfile</a> to further writing.</tt></dd></dl>
<dl><dt><a name="Outputfile-write"><strong>write</strong></a>(self, molecule)</dt><dd><tt>Write a molecule to the output file.<br>
<br>
Required parameters:<br>
molecule</tt></dd></dl>
<hr>
Data and other attributes defined here:<br>
<dl><dt><strong>__dict__</strong> = <dictproxy object><dd><tt>dictionary for instance variables (if defined)</tt></dl>
<dl><dt><strong>__weakref__</strong> = <attribute '__weakref__' of 'Outputfile' objects><dd><tt>list of weak references to the <a href="__builtin__.html#object">object</a> (if defined)</tt></dl>
</td></tr></table> <p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#ffc8d8">
<td colspan=3 valign=bottom> <br>
<font color="#000000" face="helvetica, arial"><a name="Smarts">class <strong>Smarts</strong></a>(<a href="__builtin__.html#object">__builtin__.object</a>)</font></td></tr>
<tr bgcolor="#ffc8d8"><td rowspan=2><tt> </tt></td>
<td colspan=2><tt>A <a href="#Smarts">Smarts</a> Pattern Matcher<br>
<br>
Required parameters:<br>
smartspattern<br>
<br>
Methods:<br>
<a href="#Smarts-findall">findall</a>(molecule)<br>
<br>
Example:<br>
>>> mol = <a href="#-readstring">readstring</a>("smi","CCN(CC)CC") # triethylamine<br>
>>> smarts = <a href="#Smarts">Smarts</a>("[#6][#6]") # Matches an ethyl group<br>
>>> print smarts.<a href="#Smarts-findall">findall</a>(mol) <br>
[(1, 2), (4, 5), (6, 7)]<br>
<br>
The numbers returned are the indices (starting from 1) of the atoms<br>
that match the SMARTS pattern. In this case, there are three matches<br>
for each of the three ethyl groups in the molecule.<br> </tt></td></tr>
<tr><td> </td>
<td width="100%">Methods defined here:<br>
<dl><dt><a name="Smarts-__init__"><strong>__init__</strong></a>(self, smartspattern)</dt><dd><tt>Initialise with a SMARTS pattern.</tt></dd></dl>
<dl><dt><a name="Smarts-findall"><strong>findall</strong></a>(self, molecule)</dt><dd><tt>Find all matches of the SMARTS pattern to a particular molecule.<br>
<br>
Required parameters:<br>
molecule</tt></dd></dl>
<hr>
Data and other attributes defined here:<br>
<dl><dt><strong>__dict__</strong> = <dictproxy object><dd><tt>dictionary for instance variables (if defined)</tt></dl>
<dl><dt><strong>__weakref__</strong> = <attribute '__weakref__' of 'Smarts' objects><dd><tt>list of weak references to the <a href="__builtin__.html#object">object</a> (if defined)</tt></dl>
</td></tr></table></td></tr></table><p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#eeaa77">
<td colspan=3 valign=bottom> <br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Functions</strong></big></font></td></tr>
<tr><td bgcolor="#eeaa77"><tt> </tt></td><td> </td>
<td width="100%"><dl><dt><a name="-readfile"><strong>readfile</strong></a>(format, filename)</dt><dd><tt>Iterate over the molecules in a file.<br>
<br>
Required parameters:<br>
format - see the informats variable for a list of available<br>
input formats<br>
filename<br>
<br>
You can access the first molecule in a file using the next() method<br>
of the iterator:<br>
mol = <a href="#-readfile">readfile</a>("smi", "myfile.smi").next()<br>
<br>
You can make a list of the molecules in a file using:<br>
mols = list(<a href="#-readfile">readfile</a>("smi", "myfile.smi"))<br>
<br>
You can iterate over the molecules in a file as shown in the<br>
following code snippet:<br>
>>> atomtotal = 0<br>
>>> for mol in <a href="#-readfile">readfile</a>("sdf","head.sdf"):<br>
... atomtotal += len(mol.atoms)<br>
...<br>
>>> print atomtotal<br>
43</tt></dd></dl>
<dl><dt><a name="-readstring"><strong>readstring</strong></a>(format, string)</dt><dd><tt>Read in a molecule from a string.<br>
<br>
Required parameters:<br>
format - see the informats variable for a list of available<br>
input formats<br>
string<br>
<br>
Example:<br>
>>> input = "C1=CC=CS1"<br>
>>> mymol = <a href="#-readstring">readstring</a>("smi",input)<br>
>>> len(mymol.atoms)<br>
5</tt></dd></dl>
</td></tr></table><p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#55aa55">
<td colspan=3 valign=bottom> <br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Data</strong></big></font></td></tr>
<tr><td bgcolor="#55aa55"><tt> </tt></td><td> </td>
<td width="100%"><strong>descs</strong> = ['LogP', 'MR', 'TPSA']<br>
<strong>forcefields</strong> = ['uff', 'mmff94', 'ghemical']<br>
<strong>fps</strong> = ['FP2', 'FP3', 'FP4']<br>
<strong>informats</strong> = {'acr': 'ACR format', 'adfout': 'ADF output format', 'alc': 'Alchemy format', 'arc': 'Accelrys/MSI Biosym/Insight II CAR format', 'bgf': 'MSI BGF format', 'box': 'Dock 3.5 Box format', 'bs': 'Ball and Stick format', 'c3d1': 'Chem3D Cartesian 1 format', 'c3d2': 'Chem3D Cartesian 2 format', 'caccrt': 'Cacao Cartesian format', ...}<br>
<strong>oasa</strong> = None<br>
<strong>operations</strong> = ['Gen3D']<br>
<strong>outformats</strong> = {'adf': 'ADF cartesian input format', 'alc': 'Alchemy format', 'bgf': 'MSI BGF format', 'box': 'Dock 3.5 Box format', 'bs': 'Ball and Stick format', 'c3d1': 'Chem3D Cartesian 1 format', 'c3d2': 'Chem3D Cartesian 2 format', 'cac': 'CAChe MolStruct format', 'caccrt': 'Cacao Cartesian format', 'cache': 'CAChe MolStruct format', ...}</td></tr></table>
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