Recent questions tagged Python

0 votes

276 views

1 answer

python - Subclass - Arguments From Superclass

I'm a little confused about how arguments are passed between Subclasses and Superclasses in Python. Consider the ... 1 argument (4 given) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

768 views

1 answer

python - How to scale Seaborn's y-axis with a bar plot

I'm using factorplot(kind="bar"). How do I scale the y-axis, for example with log-scale? I tried tinkering ... to make sure it really works. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

160 views

1 answer

python - Removing header column from pandas dataframe

I have the foll. dataframe: df A B 0 23 12 1 21 44 2 98 21 How do I remove the column names A and ... without writing out to csv and re-reading? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

481 views

1 answer

python argparse - either both optional arguments or else neither one

I have a program that uses a default name and password. I'm using argparse to allow the user to ... /2/library/argparse.html#argument-groups) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

187 views

1 answer

python - How to display all label values in matplotlib?

I have two lists, when I plot with the following code, the x axis only shows up to 12 (max is 15). ... not sorted, should display as it shows. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

396 views

1 answer

python - 403 Forbidden error with Django and mod_wsgi

I created Django project in home directory so it is in home directory. Setup Django Verison : 1.5.1 Python ... figure out what's wrong . See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

137 views

1 answer

python - Select as in sqlalchemy

I want to do something like this: select username, userid, 'user' as new_column from users_table. The columns of ... to the query in sqlalchemy? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

273 views

1 answer

python - Calling app from subprocess.call with arguments

I'm a beginner in Python, and I've been trying to call a command line app, but it fails: >>> import subprocess ... read 17", shell=True) >>> 0 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

473 views

1 answer

python - How to drop columns which have same values in all rows via pandas or spark dataframe?

Suppose I've data similar to following: index id name value value2 value3 data1 val5 0 345 name1 1 99 23 3 66 1 12 ... 1 12 name2 2 5 2 name6 7 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

174 views

1 answer

python - Getting corresponding module from function

I want to modify a module xyz and its functions like that: def modify(fun): modulename = fun.__module__ # this ... than the rest of the code. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

323 views

1 answer

python - Django ORM, group by day

I am trying to group products by DAY, however date_created is a datetime field. Product.objects.values(' ... edit: database backend MYSQL See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

369 views

1 answer

python - How can INFO and DEBUG logging message be sent to stdout and higher level message to stderr

Is there an easy way with python's logging module to send messages with a DEBUG or INFO level and the one with a ... ? Is it a good idea anyway? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

440 views

1 answer

python - How to get image size (bytes) using PIL

I found out how to use PIL to get the image dimensions, but not the file size in bytes. I need to know ... big to be uploaded to the database. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

209 views

1 answer

python - Can't install Django 2.0 by pip

I am building new Django app with a new version of Django. I found Django 2.0 is available (2.0.2) https://www. ... 9.0.1. What's wrong here? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

125 views

1 answer

python - Indexing numpy array with another numpy array

Suppose I have a = array([[1, 2], [3, 4]]) and b = array([1,1]) I'd like to use b in index a, ... b)] Is there a better way of doing it? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

124 views

1 answer

python - how to copy modules from one virtualenv to another

Is it possibe to copy python modules from one virtualenv to another.If so how is this done? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

772 views

1 answer

python - Sklearn StratifiedKFold: ValueError: Supported target types are: ('binary', 'multiclass'). Got 'multilabel-indicator' instead

Working with Sklearn stratified kfold split, and when I attempt to split using multi-class, I received on ... 'multilabel-indicator' instead. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

329 views

1 answer

python - Pandas groupby(),agg() - how to return results without the multi index?

I have a dataframe: pe_odds[ [ 'EVENT_ID', 'SELECTION_ID', 'ODDS' ] ] Out[67]: EVENT_ID SELECTION_ID ODDS 0 ... resort to using reset_index() ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

175 views

1 answer

python - Is there a max size, max no. of columns, max rows?

.. and, if so, what are those max limits of pandas? Sorry, this question seems elementary but I couldn't find an answer at pandas.pydata.org. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

159 views

1 answer

python - Different ways of deleting lists

I want to understand why: a = []; del a; and del a[:]; behave so differently. I ran a test ... in behaviour. Can anyone clarify this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

344 views

1 answer

python - Matplotlib legend, add items across columns instead of down

For a simple plot below, is there a way to make matplotlib populate the legend so that it fills the rows left to right, ... =2) >>> grid('on') See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

372 views

1 answer

python 3.x - Can I force python3's os.walk to visit directories in alphabetical order? how?

I would like to know if it's possible to force os.walk in python3 to visit directories in alphabetical order. For ... os.walk? If so, how? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

238 views

1 answer

python - Retrieve a task result object, given a `task_id` in Celery

I store the task_id from an celery.result.AsyncResult in a database and relate it to the item that the task ... task's state/result/etc? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

170 views

1 answer

python - How can I get the first two digits of a number?

I want to check the first two digits of a number in Python. Something like this: for i in range(1000): if(first two ... if(i>149 and i<160):... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

177 views

1 answer

python - How to open (read-write) or create a file with truncation allowed?

I want to: open a file in read-write mode if it exists; create it if it doesn't exist; be able to ... a new file for reading and writing. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

410 views

1 answer

python - Why does bool(xml.etree.ElementTree.Element) evaluate to False?

import xml.etree.ElementTree as ET e = ET.Element('Brock',Role="Bodyguard") print bool(e) Why is an xml.etree ... expect bool(e) to return True. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

144 views

1 answer

python - Delete all objects in a list

I create many object then I store in a list. But I want to delete them after some time because I create ... goes really high, very quickly. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

752 views

1 answer

python - save() prohibited to prevent data loss due to unsaved related object

I need to pass a primary key from a newly created ModelForm to another form field in the same ... HttpResponseRedirect('/bizprofile/success') See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Just Browsing Browsing

Most popular tags