AttributeError：'dict'对象没有属性'iteritems'

Question

问题：运行下面的代码时出现错误。我是新手，不确定如何解决问题。 creae功能将每个坐标点分配给它的区域。

def find_borough(lat,lon): 
     """ 
     return the borough of a location given its latitude and longitude 
     lat: float, latitude 
     lon: float, longitude 
     """ 
     boro = 0 # initialize borough as 0 
     for k,v in boros.iteritems(): # update boro to the right key corresponding to the parent polygon 
      if v['polygon'].contains(Point(lon,lat)): 
       boro = k 
       break # break the loop once the borough is found 
     return [boro] 

## Analyse the cluster now 
# create data frame of boroughs 
    df = data1[data1.Trip_duration>=1350] 
    orig_dest = [] 
    for v in df[['Pickup_latitude','Pickup_longitude','Dropoff_latitude','Dropoff_longitude']].values: 
     orig_dest.append((find_borough(v[0],v[1])[0],find_borough(v[2],v[3])[0])) 
    df2 = pd.DataFrame(orig_dest) 



     --------------------------------------------------------------------------- 
     AttributeError       Traceback (most recent call last) 
     <ipython-input-92-6a4861346be4> in <module>() 
      35 orig_dest = [] 
      36 for v in df[['Pickup_latitude','Pickup_longitude','Dropoff_latitude','Dropoff_longitude']].values: 
     ---> 37  orig_dest.append((find_borough(v[0],v[1])[0],find_borough(v[2],v[3])[0])) 
      38 df2 = pd.DataFrame(orig_dest) 
      39 

     <ipython-input-92-6a4861346be4> in find_borough(lat, lon) 
      24  """ 
      25  boro = 0 # initialize borough as 0 
     ---> 26  for k,v in boros.iteritems(): # update boro to the right key corresponding to the parent polygon 
      27   if v['polygon'].contains(Point(lon,lat)): 
      28    boro = k 

     AttributeError: 'dict' object has no attribute 'iteritems' 

Answer 1

在Python 3中，dict.iteritems被重命名为dict.items。你应该在你的代码中重命名。在Python 2中，dict.items也可以工作，虽然这会返回一个项目列表，而Python 2中的dict.iteritems（和Python 3中的dict.items）会返回一个生成器，从而实现对项目的低内存循环。