Package roslaunch :: Module param_dump
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Source Code for Module roslaunch.param_dump

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33   
34  """ 
35  Dumps parameters from ROSLaunch files to stdout as YAML. 
36  """ 
37   
38  import sys 
39   
40  import roslaunch.config 
41  import roslaunch.xmlloader  
42   
43  import yaml 
44   
45 -def dump_params(files):
46 """ 47 Dumps ROS parameters of a list of files to STDOUT in YAML 48 49 @param files: List of ROSLaunch files to load 50 @type files: [ str ] 51 @return: True if loaded parameters successfully 52 @rtype: bool 53 """ 54 config = roslaunch.config.ROSLaunchConfig() 55 loader = roslaunch.xmlloader.XmlLoader() 56 57 for f in files: 58 try: 59 loader.load(f, config, verbose = False) 60 except Exception as e: 61 sys.stderr.write("Unable to load file %s: %s" % (f, e)) 62 return False 63 64 # Now print params in YAML format. 65 params_dict = {} 66 for k, v in config.params.iteritems(): 67 params_dict[str(k)] = v.value 68 sys.stdout.write(yaml.safe_dump(params_dict)+'\n') 69 return True
70