using a list of strings to traverse a dictionary python -

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• access nested dictionary items via list of keys? 5 answers

i have dictionary in python represents directory structure,

dict = {     "file1.java": {           "method1": [],           "method2": []      },      "dir1": {           "file2.java":{            .            .            .            },            "dir2": {                     "file3.java": {                            "method3": ["hello", "hi"],                            "method4": []                     "file4.java": {             }      }  } 

i have have list of strings like

list = ["dir1", "dir2", "file3.java", "method3"] 

is there easy way traverse dictionary access data in method3 using list able call

dict[list] 

and have like

 dict["dir1"]["dir2"]["file3.java"]["method3"] 

and return

["hello", "hi"] 

but have no idea how long list of strings list

list = ["file1.java","method1"] 

also needs work

you can use reduce built-in function.

db = {     "file1.java": {           "method1": [],           "method2": []      },      "dir1": {            "dir2": {                     "file3.java": {                            "method3": ["hello", "hi"],                            "method4": []                     },                     "file4.java": {                     }             }      }  }  def lookup(db, path):     return reduce(dict.get, path, db)  print lookup( db, ["dir1", "dir2", "file3.java", "method3"] )   print lookup( db, ["file1.java","method1"] )