- Django Serialize Dict Object Has No Attribute Meta Generator
- Django Serialize Dict Object Has No Attribute Meta In English
I have written a view to register a new user for my app but when I try running it, I get the error:
The serializer field might be named incorrectly and not match any attribute or key on the ManyRelatedManager instance. Original exception text was: 'ManyRelatedManager' object has no attribute 'skilltype'. And I don't really understand what I am doing wrong. SkillSerializer should have the attribute skilltype. Django Serialize Dict Object Has No Attribute Meta Install Developer Tools Im sure I already following your instruction step-by-step, but still no good, please have a look. Are you saying you changed it to ratings profile because your models are in your profile app or because your template is in your profile app Or neither and I am just. Serializing Django objects¶. Django’s serialization framework provides a mechanism for “translating” Django models into other formats. Usually these other formats will be text-based and used for sending Django data over a wire, but it’s possible for a serializer to handle any format (text-based or not).
This exception is an attribute of the model class that the query is being performed on - so in the code above, if there is no Entry object with a primary key of 1, Django will raise Entry.DoesNotExist. Similarly, Django will complain if more than one item matches the get query. Aug 07, 2019 I splited my application from monolith to microservice architecture, but i'm using same Database across the microservices. But how will i fetch data from one application to other, because the model is specified in one application.
My code looks as follows:
Edit: My user.serializers module looks as follows:
Okay, I've fixed it, but I think the error has arisen from some issue with my environment setup. I have nevertheless found a way around it. I replaced the following line:
with:
I obviously also had to import:
I haven't figured out why I needed to use get_user_model() instead of just being able to use my User object directly, but this solved my problem.
Django Serialize Dict Object Has No Attribute Meta Generator
Peewee: reducing where conditionals break after a certain length
python,peewee
Try .where(SomeTable.BIN.in_(big_list)) PeeWee has restrictions as to what can be used in their where clause in order to work with the library. http://docs.peewee-orm.com/en/latest/peewee/querying.html#query-operators.
How to put an image on another image in python, using ImageTk?
python,user-interface,tkinter
Just use photoshop or G.I.M.P. I assure you, doing it that way will be much simpler and less redundant than essentially getting Tkinter to photo edit for you (not to mention what you're talking about is just bad practice when it comes to coding) Anyways, I guess if you really.
Python - Opening and changing large text files
python,replace,out-of-memory,large-files
You need to read one bite per iteration, analyze it and then write to another file or to sys.stdout. Try this code: mesh = open('file.mesh', 'r') mesh_out = open('file-1.mesh', 'w') c = mesh.read(1) if c: mesh_out.write('{') else: exit(0) while True: c = mesh.read(1) if c ': break if c.
Identify that a string could be a datetime object
python,regex,algorithm,python-2.7,datetime
What about fuzzyparsers: Sample inputs: jan 12, 2003 jan 5 2004-3-5 +34 -- 34 days in the future (relative to todays date) -4 -- 4 days in the past (relative to todays date) Example usage: >>> from fuzzyparsers import parse_date >>> parse_date('jun 17 2010') # my youngest son's birthday datetime.date(2010,.
In sklearn, does a fitted pipeline reapply every transform?
Universal keygen generator free for pc. python,scikit-learn,pipeline,feature-selection
The pipeline calls transform on the preprocessing and feature selection steps if you call pl.predict. That means that the features selected in training will be selected from the test data (the only thing that makes sense here). It is unclear what you mean by 'apply' here. Nothing new will be.
Python: histogram/ binning data from 2 arrays.
python,histogram,large-files
if you only need to do this for a handful of points, you could do something like this. If intensites and radius are numpy arrays of your data: bin_width = 0.1 # Depending on how narrow you want your bins def get_avg(rad): average_intensity = intensities[(radius>=rad-bin_width/2.) & (radius<rad+bin_width/2.)].mean() return average_intensities #.
SyntaxError: invalid syntax?
python,syntax
Check the code before the print line for errors. This can be caused by an error in a previous line; for example: def x(): y = [ print 'hello' x() This produces the following error: File 'E:Pythontest.py', line 14 print 'hello' ^ SyntaxError: invalid syntax When clearly the error is.
Using .update with nested Serializer to post Image
django,rest,django-models,django-rest-framework,imagefield
As noted in the docs, .update() doesn't call the model .save() or fire the post_save/pre_save signals for each matched model. It almost directly translates into a SQL UPDATE statement. https://docs.djangoproject.com/en/1.8/ref/models/querysets/#update Finally, realize that update() does an update at the SQL level and, thus, does not call any save() methods on.
The event loop is already running
python,python-3.x,pyqt,pyqt4
I think the problem is with your start.py file. You have a function refreshgui which re imports start.py import will run every part of the code in the file. It is customary to wrap the main functionality in an 'if __name__ '__main__': to prevent code from being run on.
Find the tf-idf score of specific words in documents using sklearn
python,scikit-learn,tf-idf
Yes. See .vocabulary_ on your fitted/transformed TF-IDF vectorizer. In [1]: from sklearn.datasets import fetch_20newsgroups In [2]: data = fetch_20newsgroups(categories=['rec.autos']) In [3]: from sklearn.feature_extraction.text import TfidfVectorizer In [4]: cv = TfidfVectorizer() In [5]: X = cv.fit_transform(data.data) In [6]: cv.vocabulary_ It is a dictionary of the form: {word : column index in.
represent an index inside a list as x,y in python
python,list,numpy,multidimensional-array
According to documentation of numpy.reshape , it returns a new array object with the new shape specified by the parameters (given that, with the new shape, the amount of elements in the array remain unchanged) , without changing the shape of the original object, so when you are calling the.
sys.argv in a windows environment
python,windows,python-3.x
You are calling the script wrong Bring up a cmd (command line prompt) and type: cd C:/Users/user/PycharmProjects/helloWorld/ module_using_sys.py we are arguments And you will get the correct output.
Using counter on array for one value while keeping index of other values
python,collections
To count how often one value occurs and at the same time you want to select those values, you'd simply select those values and count how many you selected: fruits = [f for f in foods if f[0] 'fruit'] fruit_count = len(fruits) If you need to do this for.
How do I read this list and parse it?
python,list
Your list contains one dictionary you can access the data inside like this : >>> yourlist[0]['popularity'] 2354 [0] for the first item in the list (the dictionary). ['popularity'] to get the value associated to the key 'popularity' in the dictionary.
Callable in model field not called upon adding new object through Django admin
django,django-models,django-admin
Try: when_first_upload = models.DateTimeField(default=datetime.datetime.now) You need the callable itself, not the result returned by it.
SQLAlchemy. 2 different relationships for 1 column
python,sqlalchemy
I'm afraid you can't do it like this. I suggest you have just one relationship users and validate the insert queries. Mindmaster crack.
Strange Behavior: Floating Point Error after Appending to List
python,python-2.7,behavior
Short answer: your correct doesn't work. Long answer: The binary floating-point formats in ubiquitous use in modern computers and programming languages cannot represent most numbers like 0.1, just like no terminating decimal representation can represent 1/3. Instead, when you write 0.1 in your source code, Python automatically translates this to.
Create angular page in Django to consume data from JSON
angularjs,django,django-templates
You can add the angular app as a simple template view in Django views.py def index(request): return render(request, 'yourhtml.html', {}) urls.py . url(r'^your_url/$', views.index), . Then the index.html file can have your angular code.
Python: can't access newly defined environment variables
python,bash,environment-variables
After updating your .bashrc, perform source ~/.bashrc to apply the changes. Also, merge the two BONSAI-related calls into one: export BONSAI=/home/me/Utils/bonsai_v3.2 UPDATE: It was actually an attempt to update the environment for some Eclipse-based IDE. This is a different usecase altogether. It should be described in the Eclipse help. Also,.
Sum of two variables in RobotFramework
python,automated-tests,robotframework
By default variables are string in Robot. So your first two statements are assigning strings like 'xx,yy' to your vars. Then 'evaluate' just execute your statement as Python would do. So, adding your two strings with commas will produce a list: $ python >>> 1,2+3,4 (1, 5, 4) So you.
Django block inclusion not working. What did I miss?
django,django-templates
Django templates do not use inclusion so much as template inheritance. The idea is you set up a hierarchy of templates, specializing some common thing. For instance: you could have a base.html that has some basic page structure, common to all pages of your website. you could then have a.
Matplotlib: Plot the result of an SQL query
python,sql,matplotlib,plot
Take this for a starter code : import numpy as np import matplotlib.pyplot as plt from sqlalchemy import create_engine import _mssql fig = plt.figure() ax = fig.add_subplot(111) engine = create_engine('mssql+pymssql://**:****@127.0.0.1:1433/AffectV_Test') connection = engine.connect() result = connection.execute('SELECT Campaign_id, SUM(Count) AS Total_Count FROM Impressions GROUP BY Campaign_id') ## the data data =.
How does the class_weight parameter in scikit-learn work?
python,scikit-learn
Django Serialize Dict Object Has No Attribute Meta In English
First off, it might not be good to just go by recall alone. You can simply achieve a recall of 100% by classifying everything as the positive class. I usually suggest using AUC for selecting parameters, and then finding a threshold for the operating point (say a given precision level).
Pandas - Dropping multiple empty columns
python,pandas
You can just subscript the columns: df = df[df.columns[:11]] This will return just the first 11 columns or you can do: df.drop(df.columns[11:], axis=1) To drop all the columns after the 11th one.
Replace nodejs for python?
python,node.js,webserver
You might want to have a look at Tornado. It is well-documented and features built-in support for WebSockets. If you want to steer clear of the Tornado-framework, there are several Python implementations of Socket.io. Good luck!.
Python recursive function not recursing
python,recursion
Afraid I don't know much about python, but I can probably help you with the algorithm. The encoding process repeats the following: multiply the current total by 17 add a value (a = 1, b = 2, ., z = 26) for the next letter to the total So at.
Django: html without CSS and the right text
python,html,css,django,url
Are you using the {% load staticfiles %} in your templates?
How to remove structure with python from this case?python,python-2.7
It's complicated to use regex, a stupid way I suggested: def remove_table(s): left_index = s.find('<table>') if -1 left_index: return s right_index = s.find('</table>', left_index) return s[:left_index] + remove_table(s[right_index + 8:]) There may be some blank lines inside the result.
Create an exe with Python 3.4 using cx_Freeze
python,python-3.4,cx-freeze Mickey mouse clubhouse watch online cartoon.
Since you want to convert python script to exe have a look at py2exe
Calling function and passing arguments multiple times
python,function,loops
a,b,c = 1,2,3 while i<n: a,b,c = myfunction(a,b,c) i +=1 .
How to check for multiple attributes in a list
python,python-2.7
You can create a set holding the different IDs and then compare the size of that set to the total number of quests. The difference tells you how many IDs are duplicated. Same for names. Something like this (untested): def test_quests(quests): num_total = len(quests) different_ids = len(set((q.ID for q in.
Python Popen - wait vs communicate vs CalledProcessError
python,python-2.7,error-handling,popen
about the deadlock: It is safe to use stdout=PIPE and wait() together iff you read from the pipe. .communicate() does the reading and calls wait() for you about the memory: if the output can be unlimited then you should not use .communicate() that accumulates all output in memory. what. Amnesia the dark descent controls.
Parse text from a .txt file using csv module
python,python-2.7,parsing,csv
How about using Regular Expression def get_info(string_to_search): res_dict = {} import re find_type = re.compile('Type:[s]*[w]*') res = find_type.search(string_to_search) res_dict['Type'] = res.group(0).split(':')[1].strip() find_Status = re.compile('Status:[s]*[w]*') res = find_Status.search(string_to_search) res_dict['Status'] = res.group(0).split(':')[1].strip() find_date = re.compile('Date:[s]*[/0-9]*') res = find_date.search(string_to_search) res_dict['Date'] = res.group(0).split(':')[1].strip() res_dict['description'] =.
How to change the IP address of Amazon EC2 instance using boto library
python,amazon-web-services,boto
Make sure you have set properly with ~/.boto and connect to aws, have the boto module ready in python. If not, go through this first: Getting Started with Boto For example, you need assign a new EIP 54.12.23.34 to the instance i-12345678 Make sure, EIP has been allocated(existed) and you. Apple configurator 2 for macos 10.13.
group indices of list in list of lists
python,list
Use collections.OrderedDict: from collections import OrderedDict od = OrderedDict() lst = [2, 0, 1, 1, 3, 2, 1, 2] for i, x in enumerate(lst): od.setdefault(x, []).append(i) . >>> od.values() [[0, 5, 7], [1], [2, 3, 6], [4]] .
Spring-integration scripting with Python
python,spring-integration,jython
This is a bug in Spring Integration; I have opened a JIRA Issue. if (variables != null) { result = scriptEngine.eval(script, new SimpleBindings(variables)); } else { result = scriptEngine.eval(script); } When the first branch of the if test is taken, the result variable is added to the SimpleBindings object, and.
Sort when values are None or empty strings python
python,list,sorting,null
If you want the None and ' values to appear last, you can have your key function return a tuple, so the list is sorted by the natural order of that tuple. The tuple has the form (is_none, is_empty, value); this way, the tuple for a None value will be.
How do variables inside python modules work?
python,module,python-module
The convention is to declare constants in modules as variables written in upper-case (Python style guide: https://www.python.org/dev/peps/pep-0008/#global-variable-names). But there's no way to prevent someone else to re-declare such a variable -- thus ignoring conventions -- when importing a module. There are two ways of working around this when importing modules.
trying to understand LSH through the sample python code
python,similarity,locality-sensitive-hash
a. It's a left shift: https://docs.python.org/2/reference/expressions.html#shifting-operations It shifts the bits one to the left. b. Note that ^ is not the 'to the power of' but 'bitwise XOR' in Python. c. As the comment states: it defines 'number of bits per signature' as 2**10 → 1024 d. The lines calculate.
odoo v8 - Field(s) `arch` failed against a constraint: Invalid view definition
python,xml,view,odoo,add-on
You have made silly mistake in defining _columns. _colums is not valid dictionary name for fields structure. Neighbors 2014 dual audio robocop. Replace this by _columns and restart service and update module. .
How to use template within Django template?
python,html,django,templates,django-1.4
You can use the include tag in order to supply the included template with a consistent variable name: For example: parent.html <div> <div> {% include 'templates/child.html' with list_item=mylist.0 t=50 only %} </div> </div> child.html {{ list_item.text|truncatewords:t }} UPDATE: As spectras recommended, you can use the.
Pandas Dataframe Complex Calculation
python,python-2.7,pandas,dataframes
I believe the following does what you want: In [24]: df['New_Col'] = df['ActualCitations']/pd.rolling_sum(df['totalPubs'].shift(), window=2) df Out[24]: Year totalPubs ActualCitations New_Col 0 1994 71 191.002034 NaN 1 1995 77 2763.911781 NaN 2 1996 69 2022.374474 13.664692 3 1997 78 3393.094951 23.240376 So the above uses rolling_sum and shift to generate the.
Twilio Client Python not Working in IOS Browser
javascript,python,ios,flask,twilio
Twilio developer evangelist here. Twilio Client uses WebRTC and falls back to Flash in order to make web browsers into phones. Unfortunately Safari on iOS supports neither WebRTC nor Flash so Twilio Client cannot work within any browser on iOS. It is possible to build an iOS application to use.
Count function counting only last line of my list
python,python-2.7
I don't know what you are exactly trying to achieve but if you are trying to count R and K in the string there are more elegant ways to achieve it. But for your reference I had modified your code. N = int(raw_input()) s = [] for i in range(N):.
how to enable a entry by clicking a button in Tkinter?
python,tkinter
You need to use the configure method of each widget: def rakhi(): entry1.configure(state='normal') entry2.configure(state='normal') .
Displaying a 32-bit image with NaN values (ImageJ)
python,image-processing,imagej
The display range of your image might not be set correctly. Try outputImp.resetDisplayRange() or outputImp.setDisplayRange(Stats.min, Stats.max) See the ImagePlus javadoc for more info.
How can I resolve my variable's unexpected output?
django,python-2.7
Remove the comma on your first line of code, this turns it into a tuple optional_message = form.cleaned_data['optional_message'], should be optional_message = form.cleaned_data['optional_message'] .
Inserting a variable in MongoDB specifying _id field
python,mongodb,pymongo
Insert only accepts a final document or an array of documents, and an optional object which contains additional options for the collection. db.collection.insert( <document or array of documents>, { // options writeConcern: <document>, ordered: <boolean> } ) You may want to add the _id to the document in advance, but.