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PYTHON QUESTIONS

Use value of variable rather than keyword in python numpy.savez
Use value of variable rather than keyword in python numpy.savez
help you fix your problem You could make a dictionary and then use ** to pass its contents in the form of keyword arguments to np.savez. For example:
TAG : python
Date : November 23 2020, 09:01 AM , By : Purni Deshmuk
Overlapping cron job that runs the same Django management command: problematic?
Overlapping cron job that runs the same Django management command: problematic?
Hope this helps Yes. This could definitely cause issues. You have a race condition. If you wish, you could acquire a lock somehow on a critical section which would prevent the next invocation from entering a section of code until the first invocation
TAG : python
Date : November 23 2020, 09:01 AM , By : yongbo
Distributed Powerset
Distributed Powerset
help you fix your problem If you use n bits of an integer to represent the items in a subset of n items, you can start the variable at 0, and increment it to get to the next subset. So to evenly distribute the work between k processors, you can simpl
TAG : python
Date : November 22 2020, 02:59 PM , By : ChadR
Set a python variable to a C++ object pointer with boost-python
Set a python variable to a C++ object pointer with boost-python
it fixes the issue When dealing with language bindings, one often has to be pedantic in the details. By default, when a C++ object transgresses the language boundary, Boost.Python will create a copy, as this is the safest course of action to prevent
TAG : python
Date : November 22 2020, 02:59 PM , By : Tiến Dũng
How to change array layout?
How to change array layout?
wish helps you One approach with ndarray.transpose and np.concatenate -
TAG : python
Date : November 22 2020, 02:59 PM , By : Fahrur Rozi
How do I properly structure Templates and include them in the settings in Django 1.8.6?
How do I properly structure Templates and include them in the settings in Django 1.8.6?
hop of those help? You have 'APP_DIRS': True, so you shouldn't have to edit DIRS to use templates in the home_app/templates/ directory, as long as home_app is in your installed apps.If you have a template,
TAG : python
Date : November 22 2020, 02:59 PM , By : silverspring
Function parameter semantics (with nested functions)
Function parameter semantics (with nested functions)
wish help you to fix your issue The expression lambda y: y + x creates a new function, and this function is returned by do_something to its caller. In this function, x is a free variable, and the closure saves a reference to the parameter to the do_s
TAG : python
Date : November 22 2020, 02:59 PM , By : Prabhanjan
Not enough arguments for format string python
Not enough arguments for format string python
fixed the issue. Will look into that further On codacy it detects an issue where I dont have enough arguments for format string. Help please. , pass a tuple, not a list
TAG : python
Date : November 22 2020, 02:59 PM , By : kkraz
How to extract equation from a polynomial fit?
How to extract equation from a polynomial fit?
this one helps. The coefficients of the linear model are stored in the intercept_ and coeff_ attributes of the model.You can see this more clearly by turning-down the regularization and feeding-in a known model; e.g.
TAG : python
Date : November 22 2020, 02:59 PM , By : Rafael
How to enable unicode for Python on Fedora?
How to enable unicode for Python on Fedora?
Does that help 'andreyto-mgtaxa-8175a98' : Create a "Fedora 23 Makefile" : $ mkdir build2 cd build2/ cmake ../
TAG : python
Date : November 22 2020, 02:59 PM , By : Jihoon Lee
How to check for a POST method in a ListView in Django views? I'm getting a 405 error
How to check for a POST method in a ListView in Django views? I'm getting a 405 error
I wish did fix the issue. It's because you're making a POST request but you've only defined a GET method. If you add a POST method, it should do the trick :
TAG : python
Date : November 22 2020, 02:59 PM , By : hodoor
Pandas fillna values with numpy array
Pandas fillna values with numpy array
may help you . If you're sure that arr is the same length as the number of times 'foo' appears, you can use the following to set the values:
TAG : python
Date : November 22 2020, 02:42 PM , By : vijaykanth
How to change the date format in a list of dates
How to change the date format in a list of dates
seems to work fine I want to import data from multiple csv files. Every business day a new CSV file is produces and the first 8 digits of the file name is the date in question. I want to import the data from the last 100 files every day. So, I though
TAG : python
Date : November 22 2020, 02:42 PM , By : Jeremy
Passing a variable between two test cases?
Passing a variable between two test cases?
should help you out Variables in test cases are local scope and not visible in other tests. If you want to access ${FIGURE} in another test, you should set it as suite variable:
TAG : python
Date : November 22 2020, 02:42 PM , By : MedicDavid
h2o: iterate through rows
h2o: iterate through rows
Hope this helps You can do a row-wise apply. iris.apply(foo,1)Where foo is some lambda that h2o understands (there are some limits on what can go in there, but all basic math ops should work fine).
TAG : python
Date : November 22 2020, 02:42 PM , By : kicc
scipy curve_fit fails on easy linear fit?
scipy curve_fit fails on easy linear fit?
To fix the issue you can do NaN values will produce meaningless results - you need to exclude them from your data before doing any fitting. You use boolean indexing to do this:
TAG : python
Date : November 22 2020, 02:42 PM , By : Victor Perez
how to multiply dataframes elementwise and create multi-index -- Python
how to multiply dataframes elementwise and create multi-index -- Python
Hope that helps You can reindex the two dataframes so their index/column match, and then multiply them:
TAG : python
Date : November 22 2020, 02:42 PM , By : Kelly Hook
Can Django's development server route mutliple sites? If yes, how?
Can Django's development server route mutliple sites? If yes, how?
this will help No, you can't. The SITE_ID is cached in various places, so you can't change it at runtime. You need a separate process for each site, but you can't bind more than one process to a single port. Neither can the development server act as
TAG : python
Date : November 22 2020, 02:42 PM , By : Pat
Apply Number formatting to Pandas HTML CSS Styling
Apply Number formatting to Pandas HTML CSS Styling
should help you out That hasn't been implemented yet (version 0.17.1) - but there is a pull request for that (https://github.com/pydata/pandas/pull/11667) and should come out in 0.18. For now you have to stick to using the formatters.
TAG : python
Date : November 22 2020, 02:42 PM , By : minnimalist
Python cosine-similarity on all possible pairs in list
Python cosine-similarity on all possible pairs in list
I wish did fix the issue. You can make use of Python's groupby and combinations functions as follows:
TAG : python
Date : November 22 2020, 02:42 PM , By : Asparatame
ImportError: cannot import name Serializer
ImportError: cannot import name Serializer
may help you . I believe this is a known issue, as seen here.We just have to install the latest update from github. sudo pip install git+https://github.com/greedo/python-xbrl.git
TAG : python
Date : November 22 2020, 02:42 PM , By : Donald Zelaya
make a shift by index with a pandas dataframe
make a shift by index with a pandas dataframe
Does that help the answer was to resample so I won't have any hole, and then apply the answer for this question : How do you shift Pandas DataFrame with a multiindex?
TAG : python
Date : November 22 2020, 02:42 PM , By : amih3
Call Python from C++ OpenCV 3.0
Call Python from C++ OpenCV 3.0
This might help you Okay, so I solved it myself by piping. Thought I should share my solution:C++ side:
TAG : python
Date : November 22 2020, 02:42 PM , By : Cesium
How to inherit from GObject class?
How to inherit from GObject class?
I hope this helps . GtkCellRendererText requires string (gchararray) data for its text property, and it is receiving custom GObject values. The __str__ function works on the Python level and is never invoked by GObject.Fortunately, what you want to a
TAG : python
Date : November 22 2020, 09:00 AM , By : Salman Khan
Prevent from converting string to int in xaxis in plot by groups
Prevent from converting string to int in xaxis in plot by groups
To fix this issue It is nor really clear what you want to do. You have to give plt some information about where to put the points, i.e. x-values. Strings do not fulfil this requirement. Can there be multiple entries per day? If not you could do somet
TAG : python
Date : November 22 2020, 09:00 AM , By : Gustavo Contreras
List sorting in Python (transpose)
List sorting in Python (transpose)
hope this fix your issue You can use zip_longest
TAG : python
Date : November 22 2020, 09:00 AM , By : underwater-smiles
Different for-"definitions/conditions but same execution code
Different for-"definitions/conditions but same execution code
seems to work fine Just out of curiosity, is something like this possible in Python?
TAG : python
Date : November 22 2020, 09:00 AM , By : Carlos A Loya
How to control the order of yield in Scrapy
How to control the order of yield in Scrapy
With these it helps you need to yield the item on the final callback, parse isn't stopping for parse_member to finish, so the group_item in parse isn't changing while parse_member is working.Don't yield the group_item of parse, just the one on parse_
TAG : python
Date : November 22 2020, 09:00 AM , By : John Gatti
Export Pandas data frame with text column containg utf-8 text and URLs to Excel
Export Pandas data frame with text column containg utf-8 text and URLs to Excel
With these it helps I don't think it is currently possible to pass XlsxWriter constructor options via the Pandas API but you can workaround the strings_to_url issue as follows:
TAG : python
Date : November 22 2020, 09:00 AM , By : Andrew Cruz
how to understand re.match in python?
how to understand re.match in python?
it fixes the issue Groups are used to capture specific parts of a regular expression. Your regex does not define any groups, therefore the group count is zero.group(0) is a special case, and it contains the entire match.
TAG : python
Date : November 22 2020, 09:00 AM , By : Sokphy Chhov
Django Form Wizard - Setting default value for text input field
Django Form Wizard - Setting default value for text input field
To fix the issue you can do I think you can do it simply in the widget, just test, if val is empty and if it is, then put in your default value like this:
TAG : python
Date : November 22 2020, 09:00 AM , By : Doug Edwards
SQLAlchemy; getting list of related tables/classes
SQLAlchemy; getting list of related tables/classes
wish of those help Using the Mapper as described in that other question gets you on the right path. As mentioned on the doc [0], you will get a bunch of sqlalchemy.orm.relationships.RelationshipProperty, and then you can use class_ on the mapper asso
TAG : python
Date : November 22 2020, 09:00 AM , By : robbie-the-robot
Producing polygon offsets using Clipper lib in python
Producing polygon offsets using Clipper lib in python
this one helps. I want to produce offset in closed polygons using Clipper lib (http://www.angusj.com/delphi/clipper.php). , the same in pyclipper would be:
TAG : python
Date : November 22 2020, 09:00 AM , By : anna
What is the pythonic way of doing nothing?
What is the pythonic way of doing nothing?
I hope this helps . If you would like to wait for the thread to exit, use thread.join():
TAG : python
Date : November 22 2020, 09:00 AM , By : Tim Harper
How do I convert python crypt object to csv so I can call csv methods on the contents
How do I convert python crypt object to csv so I can call csv methods on the contents
will be helpful for those in need You can use Python's StringIO (or cStringIO if available) to convert data into a file like object. This can then be fed to your CSV reader to be processed line by line. The following script gives you an idea how this
TAG : python
Date : November 22 2020, 09:00 AM , By : Oksana G
Read large file header (~9GB) inside tarfile without full extraction
Read large file header (~9GB) inside tarfile without full extraction
wish of those help I think you should use the standard library bz2 interface. .tbz is the file extension for tar files that are compressed with the -j option to specify a bzip2 format.As @bbayles pointed out in the comments, you can open your file as
TAG : python
Date : November 22 2020, 09:00 AM , By : rrecroc
how to uninstall all python packages
how to uninstall all python packages
should help you out Finally it worked, here's what I did:First, I uninstalled matplotlib using the command:
TAG : python
Date : November 21 2020, 09:01 AM , By : Chris Davis
Python: group list items by adjacent same value
Python: group list items by adjacent same value
wish of those help Use groupby() from itertools built-in module. For example:
TAG : python
Date : November 21 2020, 09:01 AM , By : Kevin Leutzinger
conditional dataframe operations using Pandas
conditional dataframe operations using Pandas
Hope this helps You can apply function f for each group. Function f sum all values of column C2, because there not depends on value of key2. Values of C1 depends on key2, so there are selected only value with df['key2'] == 'Y'.
TAG : python
Date : November 21 2020, 09:01 AM , By : Gandhi Mrvica
Error in getting specific row from python pandas
Error in getting specific row from python pandas
this one helps. You don't have that label in your index, it's in your first column the following should work:
TAG : python
Date : November 21 2020, 09:01 AM , By : Sylar
matplotlib: default color cycle from style
matplotlib: default color cycle from style
it helps some times Is there any way to recover the default color cycle used for plotting lines, which is somehow defined by the matplotlib stylesheet. , You can get the color cycle from the rc-params.
TAG : python
Date : November 21 2020, 09:01 AM , By : Alexandr Krol
Use key/value inheritence but leave it out of the result in pyyaml
Use key/value inheritence but leave it out of the result in pyyaml
wish helps you You would need to filter this out by hand. There is no provision in the specification of merge keys.You could, if you would not load mappings as Python dicts, but as more complex types, filter these "base" mappings out automatically, b
TAG : python
Date : November 21 2020, 09:01 AM , By : Jean Ibarz
Error when instantiating bessel functions with Sympy lambdify function
Error when instantiating bessel functions with Sympy lambdify function
it fixes the issue I am currently developping a python program to tranform a symbolic expression computed by sympy into a numpy array containing all the numerical values. I instantiate the symbolic expression with the sympy.lambdify function. , I can
TAG : python
Date : November 21 2020, 09:01 AM , By : Angela
Python: how to get create instance of a class within same class?
Python: how to get create instance of a class within same class?
may help you . Use a class method, not a static method. That way, assuming for example that Bus inherits MyCar, then Bus.get_cars_from() will call the inherited MyCar.get_cars_from, but the cls argument will be set to Bus.
TAG : python
Date : November 21 2020, 09:01 AM , By : jklaus
Custom OpenVPN client does not receive TLS ServerHello
Custom OpenVPN client does not receive TLS ServerHello
hope this fix your issue Apparently Message Packet-ID must be 1 (or more). Now I get response from server.
TAG : python
Date : November 21 2020, 09:01 AM , By : Antonorsi
Python omits some entries while itereting over dictionary, why?
Python omits some entries while itereting over dictionary, why?
wish help you to fix your issue If you only have 7 results, you must have duplicate keys in your data. You can easily verify how many unique keys you have with this:
TAG : python
Date : November 21 2020, 09:01 AM , By : lestat
Do the "temp files" of resumable uploads count in the monthly storage fee? (Google Cloud Storage)
Do the "temp files" of resumable uploads count in the monthly storage fee? (Google Cloud Storage)
wish helps you Currently (as of November 23rd, 2015), you are not charged for the temporary storage of resumable uploads. Also, keep in mind that (from the Resumable Uploads Recommended Practices page) the resumable uploads expire after one week.
TAG : python
Date : November 21 2020, 09:01 AM , By : Josephiena Jacobs
Python Regular Expression - Only allow upper and lower characters
Python Regular Expression - Only allow upper and lower characters
Does that help According to the Python RegEx docs, \b "Matches the empty string, but only at the beginning or end of a word", which is not what you want. This will match "Ollie@" because "@" is "after the end of the word", and \b matches the empty st
TAG : python
Date : November 21 2020, 09:01 AM , By : Stiglic
How to get the function and module names from a traceback?
How to get the function and module names from a traceback?
it should still fix some issue In this way you can retrieve the function name and the module name where the function is.
TAG : python
Date : November 21 2020, 09:01 AM , By : Sean Ogden
Nonlinear colormap with Matplotlib
Nonlinear colormap with Matplotlib
this one helps. In the example where levels1 = [-50, -20, -9, -6, -3, -2, -1, 0] you are dividing by zero when you say self._x = self.levels/ self.levels.max() . It seems that functions like pcolor and contourf rescale the input data between 0 and 1
TAG : python
Date : November 21 2020, 09:01 AM , By : Pinky
writing to file error with 3 arguments?
writing to file error with 3 arguments?
I hope this helps . In this line speeders_data.write("{0:>14s} is foreign and is speeding at{1:5.1f} mps".format(plate, speed),", and has an excess speed of",speed-speed_limit) you call write function with 3 arguments,There is two ,.
TAG : python
Date : November 21 2020, 09:01 AM , By : Rebecca_help
How to access the string stored in the variable? (Python)
How to access the string stored in the variable? (Python)
hope this fix your issue Since my last question was rather poorly worded, here is a different question that will provide me the same benefits! , You can create a variable in the module namespace like so
TAG : python
Date : November 21 2020, 09:01 AM , By : Maloy Halder
How to add significance levels on bar graph using Python's Matplotlib?
How to add significance levels on bar graph using Python's Matplotlib?
Any of those help As far as I know there is no standard scientific journal representation for showing significance. The exact way you draw it is a matter of taste. This is probably the reason why matplotlib has no specific function for significance b
TAG : python
Date : November 21 2020, 09:01 AM , By : Cat Lover
Add zeros as prefix to a calculated value based on the number of digits
Add zeros as prefix to a calculated value based on the number of digits
help you fix your problem I have written an expression which will ask for a user input. Based on the user input, it will calculate a value. If the calculated value is say 1, then I want the value to be converted to 0001. Same thing applies when the c
TAG : python
Date : November 21 2020, 07:38 AM , By : claudio Alfaro
Pandas Dataframe Filtering Columns and return column name
Pandas Dataframe Filtering Columns and return column name
seems to work fine You can filter the columns first to get the cols of interest and then call apply and use the boolean mask to mask the cols:
TAG : python
Date : November 21 2020, 07:38 AM , By : Ivan Ulisses
Get dictionary key by value if value is list
Get dictionary key by value if value is list
it fixes the issue So this is related to a shorter question posted here earlier: Get key by value in dictionary , Use a list comprehension with a conditional
TAG : python
Date : November 21 2020, 07:38 AM , By : SisterObvious
Endless Repeating Error in finding Prime Number in Python
Endless Repeating Error in finding Prime Number in Python
Does that help 94 is the maximum recursion depth for python. You can increase the maximum recursion depth or you can use an iterative method rather than your current recursive one. Just to be clear, recursion is when you call a function from inside i
TAG : python
Date : November 21 2020, 07:38 AM , By : Kasparas42180
python: set read-only attribute for class objects
python: set read-only attribute for class objects
help you fix your problem I've created a class object called 'Node'. I then created two subclasses 'Beetle' and 'Dakota'. You'll notice there is an attr called 'superclass' which is part of the baseclass. I want this attribute to be set for each subc
TAG : python
Date : November 21 2020, 07:38 AM , By : foEs
python-tornado chatdemo on heroku
python-tornado chatdemo on heroku
I hope this helps you . It doesn't work because you're accessing it using https:// but you're trying to load jquery using http://. If you check out your browser's error console you'll see the error that's preventing jquery library to load. This is kn
TAG : python
Date : November 21 2020, 07:38 AM , By : Oğuz Han Kurnaz
Log value of variable every second in Python
Log value of variable every second in Python
fixed the issue. Will look into that further You can use threading to print var each second.try this example:
TAG : python
Date : November 21 2020, 07:38 AM , By : majsterworks

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