[Chimera-users] Loop through hundreds of files and find HBonds

[Samuel Kyobe]

Hi Eric

I have modified the code:

	hbonds_output = files[:-4] + "hbonds.txt" # change ".pdb" to "hbonds.txt"
	rc("findhbond intermodel  true intramodel  false relax  false reveal  true saveFile" + hbonds_output)

But, the code returns the error below:

File "/private/var/folders/y2/p069gv9n6lsf1x8w08bym32w0000gn/T/AppTranslocation/AF4918BD-D759-418D-AA97-756E6B1D941C/d/Chimera.app/Contents/Resources/share/Midas/midas_text.py", line 3396, in _parseTyped
    % typed
MidasError: No value provided for keyword 'saveFile247_CnA1_pol_frag_1_conf_36_out_01hbonds.txt'

Not sure what could be causing the error.

Thank you

Samuel




> On 15 Apr 2022, at 04:02, Eric Pettersen <pett at cgl.ucsf.edu> wrote:
> 
> Hi Samuel,
> 	You know the ligand file name, so you could just modify that to make a corresponding unique output file name.  So between lines 22 and 23 you could do:
> 
> 	hbonds_output = files[:-4] + “.hbonds.txt” # change “.pdb” to “.hbonds.txt”
> 
> and your findhbond command would be rc("findhbond intermodel  true intramodel  false relax  false reveal  true saveFile “ + hbonds_output)
> 
> —Eric
> 
>> On Apr 14, 2022, at 6:10 AM, Samuel Kyobe via Chimera-users <chimera-users at cgl.ucsf.edu> wrote:
>> 
>> Hi Elaine
>> 
>> Thank you so much for your responses.
>> I have modified the recommended example as seen below:
>> 
>> 		1	import chimera
>> 		2	import os
>> 		3	import glob
>> 		4	
>> 		5	from chimera import runCommand as rc 
>> 		6	from chimera import replyobj 
>> 		7	
>> 		8	# change to folder with data files
>> 		9	os.chdir("/Volumes/Auto_chimera")
>> 		10	
>> 		11	# absolute path to search all .pdb files of ligands
>> 		12	path = r'./*_out_*.pdb’ # several files with output name specified as *_out_*.pdb
>> 		13	files = glob.glob(path)
>> 		14	print(files)
>> 		15	
>> 		16	file_names = files
>> 		17	
>> 		18	for files in file_names:
>> 		19		my_mod=chimera.openModels.open('./HLA_5w6a_model_4.pdb',type="PDB")
>> 		20		replyobj.status("Processing " + files)
>> 		21		rc("open " + files)
>> 		22		rc("addh")
>> 		23		rc("findhbond intermodel  true intramodel  false relax  false reveal  true saveFile")
>> 		24		rc("close all")
>> 		25	rc("stop now”)
>> 
>> My current challenge is how to save the different resultant files with unique file_names (line 25).
>> 
>> Is there an alternative way I can call the files names after saveFile (line 25)? Your example doesn’t not work with my modified code.
>> 
>> Thank you
>> 
>> Samuel
>> 
>> 
>> 
>>> On 13 Apr 2022, at 19:04, Elaine Meng <meng at cgl.ucsf.edu> wrote:
>>> 
>>> Hi Samuel,
>>> Although the first link I sent you shows Chimera commands, the second link shows how to put those commands together with Python for looping.
>>> Elaine
>>> 
>>>> On Apr 13, 2022, at 9:00 AM, Samuel Kyobe via Chimera-users <chimera-users at cgl.ucsf.edu> wrote:
>>>> 
>>>> Dear Elaine
>>>> 
>>>> The challenge I have is that the Command Index is not written for Python which I would prefer to use for looping in several files.
>>>> 
>>>> I am using only Chimera I have no access to ChimeraX.
>>>> 
>>>> Thank you
>>>> 
>>>> Samuel
>>> 
>> 
>> 
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>