Recent questions tagged Python

0 votes

336 views

1 answer

python - Apache Spark throws NullPointerException when encountering missing feature

I have a bizarre issue with PySpark when indexing column of strings in features. Here is my tmp.csv file: x0,x1 ... and the result is the same. See Question&Answers more detail:os...

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

0 votes

382 views

1 answer

python - How to clean up temporary file used with send_file?

I'm currently developing a server side json interface where several temporary files are manipulating during ... in temporary directories. See Question&Answers more detail:os...

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

0 votes

114 views

1 answer

python - Dict/Set Parsing Order Consistency

Containers that take hashable objects (such as dict keys or set items). As such, a dictionary can only ... constructing dict or set objects. See Question&Answers more detail:os...

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

0 votes

590 views

1 answer

python - SyntaxError: cannot assign to operator

def RandomString (length,distribution): string = "" for t in distribution: ((t[1])/length) * t[1] += ... length of the string that you want. See Question&Answers more detail:os...

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

0 votes

686 views

1 answer

python - heatmap-like plot, but for categorical variables in seaborn

Same question as heatmap-like plot, but for categorical variables but using python and seaborn instead of R: ... the seaborn issue tracker. See Question&Answers more detail:os...

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

0 votes

477 views

1 answer

python - How to plot a rectangle on a datetime axis using matplotlib?

I tried to plot a rectangle on a graph with a datetime x-axis using the following code: from datetime import ... matplotlib version 1.0.1) See Question&Answers more detail:os...

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

0 votes

320 views

1 answer

python - How to install graphviz-2.38 on windows 10

I know this is basic, but I'm pretty stuck. I've never installed python packages on Windows OS before... only Linux. ... , so I'm a little lost. See Question&Answers more detail:os...

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

0 votes

450 views

1 answer

python - AttributeError: StringIO instance has no attribute 'fileno'

def captureOutput(self, func, *args, **kwargs): pass sys.stdout.flush() sys.stderr.flush() (outfd, fn) = ... error and how can I correct it? See Question&Answers more detail:os...

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

0 votes

345 views

1 answer

python - PyTorch : How to properly create a list of nn.Linear()

I have created a class that has nn.Module as subclass. In my class, I have to create N number of linear ... separately. Thank you in advance, M 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 - Why is reading multiple files at the same time slower than reading sequentially?

I am trying to parse many files found in a directory, however using multiprocessing slows my program. # Calling my ... here ? Thanks in advance! See Question&Answers more detail:os...

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

0 votes

228 views

1 answer

python - How can I type-hint a function where the return type depends on the input type of an argument?

Assume that I have a function which converts Python data-types to Postgres data-types like this: def map_type( ... the concrete instance type. See Question&Answers more detail:os...

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

0 votes

355 views

1 answer

python - Adding two tuples elementwise

I was just wondering if there was an especially pythonic way of adding two tuples elementwise? So far (a and b ... how I would do that. Thanks See Question&Answers more detail:os...

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

0 votes

675 views

1 answer

python - TensorFlow: AttributeError: 'Tensor' object has no attribute 'shape'

I have the following code which uses TensorFlow. After I reshape a list, it says AttributeError: 'Tensor' object has ... me what I am missing? 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 can I have a Django signal call a model method?

Maybe it's just late, but I cannot figure out why this isn't working. When I have a post_save signal call a ... my head into the wall? Thanks. See Question&Answers more detail:os...

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

0 votes

454 views

1 answer

python - In matplotlib, how do you draw R-style axis ticks that point outward from the axes?

Because they are drawn inside the plot area, axis ticks are obscured by the data in many matplotlib plots. A ... -around for the minor ticks? See Question&Answers more detail:os...

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

0 votes

169 views

1 answer

python - ImportError: cannot import name inplace_column_scale

Using Python 2.7 with scikit-learn 0.14 package. It runs well on some examples from the user ... import name inplace_column_scale Thank you~ See Question&Answers more detail:os...

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

0 votes

161 views

1 answer

python - Patch __call__ of a function

I need to patch current datetime in tests. I am using this solution: def _utcnow(): return datetime.datetime. ... How to do this elegantly? See Question&Answers more detail:os...

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

0 votes

386 views

1 answer

python - Keeping columns in the specified order when using UseCols in Pandas Read_CSV

I have a csv file with 50 columns of data. I am using Pandas read_csv function to pull in a subset of ... Any help would be much appreciated! See Question&Answers more detail:os...

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

0 votes

400 views

1 answer

python - matplotlib simple and two head arrows

I would like to make a simple arrow and a two head arrow. I used the following to make a simple arrow, ... two head arrows with this method. See Question&Answers more detail:os...

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

0 votes

422 views

1 answer

python - Print an integer array as hexadecimal numbers

I have an array created by using array1 = np.array([[25, 160, 154, 233], [61, 244, 198, 248], [227, ... just to give example of what I need. See Question&Answers more detail:os...

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

0 votes

411 views

1 answer

python - ValueError: Invalid RGBA argument: What is causing this error?

I am trying to create a 3D colored bar chart using ideas from: this stackoverflow post. First I create ... stackoverflow post becomes obsolete? See Question&Answers more detail:os...

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

0 votes

241 views

1 answer

python - ImportError: cannot import name '_ccallback_c'

Initially I was getting this error (No Module name was found scipy) So I installed a Scipy ... sklearn.linear_model import LinearRegression See Question&Answers more detail:os...

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

0 votes

497 views

1 answer

python - 'Tensor' object has no attribute 'lower'

I am fine-tuning a MobileNet with 14 new classes. When I add new layers by: x=mobile.layers[-6].output x= ... model which is x in this case. See Question&Answers more detail:os...

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

0 votes

330 views

1 answer

python - 'module' object has no attribute 'basicConfig'

I have the following code, copied from the Python manual: import logging LOG_FILENAME = 'example.log' logging.basicConfig( ... .6.6. Thank you! See Question&Answers more detail:os...

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

0 votes

1.0k views

1 answer

python - Why is OrderedDict named in camel case while defaultdict is lower case?

Looking at the source code, it seems the only "reason" is that OrderedDict is written in Python, while ... <class 'collections.OrderedDict'> See Question&Answers more detail:os...

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

0 votes

328 views

1 answer

python - pandas convert from datetime to integer timestamp

Considering a pandas dataframe in python having a column named time of type integer, I can convert it to a ... any utility for this conversion? See Question&Answers more detail:os...

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

0 votes

142 views

1 answer

python - Max recursion is not exactly what sys.getrecursionlimit() claims. How come?

I've made a small function that will actually measure the max recursion limit: def f(x): r = x try: ... than the sys.getrecursionlimit() value? See Question&Answers more detail:os...

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

0 votes

968 views

1 answer

python - Getting an error - AttributeError: 'module' object has no attribute 'run' while running subprocess.run(["ls", "-l"])

I am running on a AIX 6.1 and using Python 2.7. Want to execute following line but getting an error. ... ' object has no attribute 'run' 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