keyerror

问题 I installed django-scheduler with pip (https://github.com/llazzaro/django-scheduler) and I edited settings.py as in the tutorial. When I run $python manage.py runserver I got this: python manage.py runserver Traceback (most recent call last): File "manage.py", line 10, in <module> execute_from_command_line(sys.argv) File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 385, in execute_from_command_line utility.execute() File "/usr/local/lib/python2.7/dist

问题 Using python and twitter api to get tweet objects. I have a file (tweetfile = a .txt file on my computer) with tweets and I'm trying to loop through the objects to get the text. I checked the twitter object with tweetObj.keys() to see the keys and 'text' is there; however, when I try to get the individual text using tweetObj['text'] I get the KeyError: 'text' code: for line in tweetfile: tweetObj = json.loads(line) keys = tweetObj.keys() print keys tweet = tweetObj['text'] print tweet below

问题 File "/usr/local/lib/python2.7/dist-packages/openerp-7.0_20140112_001021-py2.7.egg/openerp/osv/osv.py", line 199, in execute res = self.execute_cr(cr, uid, obj, method, *args, **kw) File "/usr/local/lib/python2.7/dist-packages/openerp-7.0_20140112_001021-py2.7.egg/openerp/osv/osv.py", line 187, in execute_cr return getattr(object, method)(cr, uid, *args, **kw) File "/usr/local/lib/python2.7/dist-packages/openerp-7.0_20140112_001021-py2.7.egg/openerp/addons/base_import/models.py", line 219, in

问题 I wrote a Python script (below) which load data from a text file (using pandas ) and checks the values in the columns. import sys import pandas as pd import numpy as np from numpy import ndarray import math import matplotlib.pyplot as plt from matplotlib.pyplot import * from skimage import data from skimage.feature import match_template if __name__ == '__main__': data = pd.read_csv('Fe_PSI_spt_refined.txt', sep=" ", header = None) data.columns = ["Angle_number", "Omega", "Intensity", "X", "Y"

问题 I have a dataset with 10 columns, in which column 4 and 8 are the data I want to plot, and column 9 is determining the marker type. mkr_dict = {'Fluoride': 'D', 'Chloride': 'P', 'Bromide': 'o', 'Iodide' : '^'} for kind in mkr_dict: d = df[df.Halogen==kind] plt.scatter(d[3], d[7], s = 20, c = 'red', marker=mkr_dict[kind]) plt.show() I keep getting Key Error: 3 while executing. Can someone give me an advice? 回答1: As you can see in the following minimal example, the code from the question may

问题 I'm trying to create a cipher with a scrambled alphabet contanting all possible characters, including unicodes, chinease/japanease symbols and etc... I found out that I can print up to 65536 characters. I'm building the regular alphabet with a dict and a list of the numbers of those characters. alphabet = { } numeral = [] for n in xrange(65536): alphabet[unichr(n)] = n numeral.append(n) As for the cipher: cipher_alphabet = { } for char in alphabet: cipher_alphabet[char] = choice(numeral)

问题 I'm setting up a model that needs to be created with a number of instances of a sub-model. I want to be able to edit and create this model in the admin interface so I'm adding it using ModelAdmin. According to the documentation I should be able to specify the fields/panels in accordance to normal Page types; however, when I add a InlinePanel I get an KeyError on the related field name. models.py class Application(models.Model): # other fields.... panels = [MultiFieldPanel([ FieldPanel(

问题 I was trying to import a module from a different directory level so I used: import os import sys sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))) But now I get this error. I'm using Spyder and the first time I use the following import, it works fine. from source.search.ci_search_project import CI_Search_Project From the second time I get this error. File "ipython-input-29-f35dfe634c32", line 1, in module runfile('C:/Users/nrshakya/Documents/CI/src/Comp

问题 I have a dictionary dct for which I want each of its values to be summed provided their corresponding keys exist in a specified list lst . The code I am using so far is: sum(dct[k] for k in lst) In the above generator expression I would like to handle the KeyError in case a key from the list is not found inside the dictionary. I cannot seem to find how to implement (syntax-wise) either a try - except approach, nor an if - else approach inside this generator expression. In case a key from the

问题 I'm new to both Django and Python so please forgive me if I come off as annoying....I'm just very much misinformed! Error Code: http://i.gyazo.com/68d88cabf536b129dc37cde6c3ae319c.png I've googled about this 'KeyError' and it seems to be related to clean(). However, the example my lecturer gave me worked ok without it but when I tried to recreate what he gave me I kept getting this error. A bit of info: I had originally had a ForeignKey for the user for each submission so I changed it to a