Recent questions tagged Python

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python - How to capture print output of another module?

I was wondering if this is possible in python: # module1 def test(): print('hey') # module2 import module1 ... from running module1 as a script? See Question&Answers more detail:os...

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

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480 views

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python - django app in heroku getting worker timeout error

I have deployed a django app and deployed to Heroku it takes facebook account id's as input through CSV file ... Booting worker with pid: 30 See Question&Answers more detail:os...

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

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328 views

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python - OSError: dlopen(libSystem.dylib, 6): image not found

Just updated my Mac to El Capitan 10.11. I am trying to run Django 1.6 with Celery 3.1 and I'm getting ... Anyone has had a problem like this? See Question&Answers more detail:os...

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

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461 views

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python - pandas: drop duplicates in groupby 'date'

In the dataframe below, I would like to eliminate the duplicate cid values so the output from df.groupby( ... has no attribute 'drop_duplicates' See Question&Answers more detail:os...

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

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397 views

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python - Force Return of "View" rather than copy in Pandas?

When selecting data from a Pandas dataframe, sometimes a view is returned and sometimes a copy is returned. While there ... a view or a copy? See Question&Answers more detail:os...

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

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260 views

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python - How to find the number of nested lists in a list?

The function takes a list and returns an int depending on how many lists are in the list not including the list ... 1 return(count_list(a[i])) See Question&Answers more detail:os...

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

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514 views

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python - Paging output from print statement

I'm essentially trying to achieve this: >>>print "SOME_VERY_LONG_TEXT" | more Of course, it doesn't ... pydoc.pager("SOME_VERY_LONG_TEXT") See Question&Answers more detail:os...

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

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445 views

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python - How to horizontally center a widget using grid()?

I am using grid() to place widgets in a tkinter window. I am trying to put a label on the horizontal center ... like to keep using grid(). See Question&Answers more detail:os...

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

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418 views

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python - How can I splice a string?

I know I can slice a string in Python by using array notation: str[1:6], but how do I splice it? i ... string, possibly of a different length? See Question&Answers more detail:os...

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

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603 views

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python - Numpy: convert an array to a triangular matrix

I was looking for a built in method to convert an linear array to triangular matrix. As I failed in find ... triangular matrix from 1-D array? See Question&Answers more detail:os...

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

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713 views

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python - PySerial: How to send Ctrl-C command on the serial line

I'm automating a configuration process for an embedded board. To enter the setup screen I need to send "Ctrl-C" ... I need to send? Thank you See Question&Answers more detail:os...

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

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534 views

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python - pprint(): how to use double quotes to display strings?

If I print a dictionary using pprint, it always wraps strings around single quotes ('): >>> from pprint import pprint >>> ... BBB": 2, "CCC": 3} See Question&Answers more detail:os...

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

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319 views

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python - How to mock/set system date in pytest?

In some of my tests I am having a problem that they fail on Travis because of time and time zone problems, so I ... my test. How can I do this? See Question&Answers more detail:os...

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

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283 views

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python - Django - accessing the RequestContext from within a custom filter

I've got a filter currency, which takes a value in USD and converts it to a currency (either USD or GBP). The ... '0.63')) return mark_safe(val) See Question&Answers more detail:os...

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

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293 views

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python - Multiple columns with the same name in Pandas

I am creating a dataframe from a CSV file. I have gone through the docs, multiple SO posts, links as I have ... . How can I get that column? See Question&Answers more detail:os...

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

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252 views

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python - Copy list and append an element in one line

Can this be reduced to a single line (after assigning a)? a = [1,2,3] b = a[:] b.append(4) See Question&Answers more detail:os...

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

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664 views

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python - Django REST Framework : "This field is required." with required=False and unique_together

I want to save a simple model with Django REST Framework. The only requirement is that UserVote.created_by is set ... code? Thanks in advance! See Question&Answers more detail:os...

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

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348 views

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python - Don't parse options after the last positional argument

I'm writing a wrapper around the ssh command line client. After the first positional argument that's part ... consumed as positional arguments? See Question&Answers more detail:os...

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

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576 views

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python - Pandas - Interleave / Zip two DataFrames by row

Suppose I have two dataframes: >> df1 0 1 2 0 a b c 1 d e f >> df2 0 1 2 0 A B C 1 D E F How ... is also the case with my real DFs). Any ideas? See Question&Answers more detail:os...

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

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497 views

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python - Pandas: `item` has been deprecated

So far I used this line of code here: max_total_gross = event_data["max_total_gross"].loc[event_data["event_id"] ... expected a single integer. See Question&Answers more detail:os...

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

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342 views

1 answer

python - pandas - merging with missing values

There appears to be a quirk with the pandas merge function. It considers NaN values to be equal, and will ... without first slicing them out? See Question&Answers more detail:os...

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

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338 views

1 answer

python - I get an error in python3 when importing mechanize

I get an error in python3 when importing mechanize. I've just installed mechanize into my virtualenv where python3 is ... ==0.2.6.dev-20140305 See Question&Answers more detail:os...

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

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450 views

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python sphinx - In reStructuredText, how to put an inline literal inside of a hyperlink?

In my reStructuredText document, I have a section defined like so: Update the ``PATH`` Environment Variable ------ ... . Can anyone help me out? See Question&Answers more detail:os...

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

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787 views

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python - Django filter query on with property fields automatically calculated

There is Django Order model with property fields automatically calucated. How to do a filter query. class Order(models ... 'expire' into field. See Question&Answers more detail:os...

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

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343 views

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python - Is there a way to construct an object using PyYAML construct_mapping after all nodes complete loading?

I am trying to make a yaml sequence in python that creates a custom python object. The object needs to be ... node's objects have been loaded? See Question&Answers more detail:os...

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

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585 views

1 answer

python - Replace nan values in tensorflow tensor

I'm working on a convolutional neural network in tensorflow and I have a problem. The problem is the input image I ... I feed it to the net? See Question&Answers more detail:os...

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

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498 views

1 answer

python - How to create a permutation in c++ using STL for number of places lower than the total length

I have a c++ vector with std::pair<unsigned long, unsigned long> objects. I am trying to generate permutations of the objects ... , 4) (7, 6, 5) See Question&Answers more detail:os...

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

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330 views

1 answer

python - How do I delete the Nth list item from a list of lists (column delete)?

How do I delete a "column" from a list of lists? Given: L = [ ["a","b","C","d"], [ 1, 2, 3, 4 ... that will do that? Something like: del L[:][2] See Question&Answers more detail:os...

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

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