标签: attributeerror

我正在开发一个大型 python 项目，最后脚本由 PyInstaller 打包。上周我打包和运行我的应用程序没有遇到任何问题。这周我打包脚本时没有出现任何错误。然而，当我现在运行我的可执行文件时，我似乎遇到了一个相当普遍的错误，但来自一个奇怪的来源：

    Traceback (most recent call last):
  File "<string>", line 120, in <module>
  File "/usr/local/lib/python2.7/dist-packages/PyInstaller/loader/pyi_importers.py", line 271, in load_module
    exec(bytecode, module.__dict__)
  File "/tmp/build/tmpDJZeLr/out00-PYZ.pyz/encodings", line 157, in <module>
AttributeError: 'module' object has no attribute 'register'

我在我的代码中查找罪魁祸首，但我的项目中没有一个名为“注册”的属性/函数/等。我尝试在自己的代码中添加一些调试语句，但在弹出此错误之前，我的脚本中没有一个函数被调用。

然后我决定在 pyi_importers.py 中第 70 行附近添加一些打印语句：

            sys.modules[fullname] = module
            # Run the module code.
            print module
            print module.__dict__
            print bytecode
            exec(bytecode, module.__dict__)

结果是：

<module 'encodings.aliases' from '/tmp/_MEIbDiUZq/encodings/aliases.pyc'>
{'__name__': 'encodings.aliases', '__file__': '/tmp/_MEIbDiUZq/encodings/aliases.pyc', '__loader__': <pyi_importers.FrozenImporter object at 0x7f1666fa0d10>, '__doc__': None, '__package__': 'encodings'}
<code object <module> …

我是Python的初学者。我目前正在尝试使用 IK 来移动机器人手臂。当我尝试运行我的程序时，手臂能够移动到我设置的起始位置，但是当它进入下一步时，它会向我显示以下错误：AttributeError: 'bool' object has no attribute 'items'

这是我的程序：

class Pick_Place (object):

    #def __init__(self,limb,hover_distance = 0.15):
    def __init__(self,limb):
       self._limb = baxter_interface.Limb(limb)
       self._gripper = baxter_interface.Gripper(limb)
       self._gripper.calibrate(limb)
       #self.gripper_open()
       #self._verbose = verbose
       ns = "ExternalTools/" + limb + "/PositionKinematicsNode/IKService"
       self._iksvc = rospy.ServiceProxy(ns,SolvePositionIK) 
       rospy.wait_for_service(ns, 5.0)

    def move_to_start (self,start_angles = None):

            print ("moving.....")
            if not start_angles:
                print ("it is 0")
                start_angles = dict(zip(self._joint_names, [0]*7))

            self._guarded_move_to_joint_position(start_angles)
            self.gripper_open()
            rospy.sleep(1.0)
            print ("moved!!!")

#########################IK_Server################################################
    def ik_request (self,pose):
        hdr = Header(stamp=rospy.Time.now(),frame_id='base')
        ikreq = SolvePositionIKRequest()
        ikreq.pose_stamp.append(PoseStamped(header=hdr, pose=pose))
        try:
            resp …

基于我的模型：

from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy import Column, Integer, String, ForeignKey
from sqlalchemy.orm import relationship

Base = declarative_base()

class Session(Base):
    __tablename__ = 'sessions'

    id = Column(Integer, primary_key=True)
    token = Column(String(200))
    user_id = Column(Integer, ForeignKey('app_users.id'))
    user = relationship('model.user.User', back_populates='sessions')

我想通过以下方式实例化一个新会话：

session = Session(token='test-token-123')

但我得到：

AttributeError: mapper

完整的堆栈跟踪：

Traceback (most recent call last):
  File "/home/ubuntu/.local/lib/python3.5/site-packages/falcon/api.py", line 227, in __call__
    responder(req, resp, **params)
  File "./app_user/register.py", line 13, in on_post
    session = Session(token='test-token-123')
  File "<string>", line 2, in __init__
  File "/home/ubuntu/.local/lib/python3.5/site-packages/sqlalchemy/orm/instrumentation.py", line 347, …

我收到以下错误：

AttributeError: Got AttributeError when attempting to get a value for field `city` on serializer `SearchCitySerializer`

我的序列化程序是正确的，除非我明显遗漏了一些东西。

这是我的模型：

class SearchCity(models.Model):
    city = models.CharField(max_length=200)

这是我的序列化程序

class SearchCitySerializer(serializers.ModelSerializer):
    class Meta:
        model = SearchCity
        fields = ('pk','city')

*** 我在没有 pk 的情况下尝试了序列化程序，但仍然失败

在这里它在视图中使用：

 from serializers import SearchCitySerializer

 def get(self, request, format=None):
        searchcityqueryset = SearchCity.objects.all()
        serializedsearchcity = SearchCitySerializer(searchcityqueryset)

        return Response({
            'searchcity': serializedsearchcity.data,
        })

我得到的完整错误：

File "/home/rickus/Documents/softwareProjects/211hospitality/suitsandtables/backend/virtualsuits/suitsandtables/suitsandtablessettingsapp/views.py", line 37, in get
    'searchcity': serializedsearchcity.data,
  File "/home/rickus/Documents/softwareProjects/211hospitality/suitsandtables/backend/virtualsuits/local/lib/python2.7/site-packages/rest_framework/serializers.py", line 537, in data
    ret = super(Serializer, self).data
  File "/home/rickus/Documents/softwareProjects/211hospitality/suitsandtables/backend/virtualsuits/local/lib/python2.7/site-packages/rest_framework/serializers.py", line …

我创建了一个随机数据框来模拟来自seaborn的数据集提示：

import numpy as np
import pandas as pd

time = ['day','night']
sex = ['female','male']
smoker = ['yes','no']
for t in range(0,len(time)):
    for s in range(0,len(sex)):
        for sm in range(0,len(smoker)):
            randomarray = np.random.rand(10)*10
            if t == 0 and s == 0 and sm == 0:
                df = pd.DataFrame(index=np.arange(0,len(randomarray)),columns=["total_bill","time","sex","smoker"])
                L = 0
                for i in range(0,len(randomarray)):
                    df.loc[i] = [randomarray[i], time[t], sex[s], smoker[sm]]
                    L = L + 1
            else:
                for i in range(0,len(randomarray)):
                    df.loc[i+L] = [randomarray[i], time[t], sex[s], …