numexpr | Fast numerical array expression evaluator for Python | Data Manipulation library
kandi X-RAY | numexpr Summary
kandi X-RAY | numexpr Summary
Fast numerical array expression evaluator for Python, NumPy, PyTables, pandas, bcolz and more
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Top functions reviewed by kandi - BETA
- Return a multiplication op
- Check if a list of nodes are ConstantNode
- Find the common kind of the given nodes
- Compute the comparison of all experiments
- Calculate the comparison between expression and nexpr
- Return the number of threads to use
- Return the number of CPU cores
- Setup the package
- Parse the site cf file
- Decorator function for chunksize
- Decorator for functions
- Return the number of cores
- Get IP address
- Create a where function
- Helper function for div operator
- Compute the expression
- Evaluate expression with expr_func
- Return the NumPy version of the NumPy interpreter
- Return information about the command
- Decorator factory for functions
- Return a dictionary of key - value pairs
- Return a function for reduction axis
- Benchmark a numpy array
- Decorator for operator methods
- Create an operator for a binary operator
- Set the accuracy mode
numexpr Key Features
numexpr Examples and Code Snippets
Lines of Code : 646License : Permissive (BSD-3-Clause)
Copy
.. _whatsnew_120.duplicate_labels:
Optionally disallow duplicate labels
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
:class:`Series` and :class:`DataFrame` can now be created with ``allows_duplicate_labels=False`` flag to
control whether the index or colu
.. _whatsnew_0200.privacy.extensions:
Modules privacy has changed
^^^^^^^^^^^^^^^^^^^^^^^^^^^
Some formerly public python/c/c++/cython extension modules have been moved and/or renamed. These are all removed from the public API.
Furthermore, the ``
.. _whatsnew_0150.cat:
Categoricals in Series/DataFrame
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
:class:`~pandas.Categorical` can now be included in ``Series`` and ``DataFrames`` and gained new
methods to manipulate. Thanks to Jan Schulz for much of this python is /opt/anaconda3/bin/python
python is /usr/local/bin/python
python is /usr/bin/python
>>> df.replace(r'<(.*)', r'\1/2', regex=True).apply(pd.eval)
var_1 var_2 var_3
0 2.0 88.72 0.045
1 0.5 5.00 0.045
2 2.0 17.60 0.045
out = df.melt(ignore_index=False)
m = out['value'package:
name: jive
version: "0.2.1"
source:
path: .
build:
script: python -m pip install --no-deps --ignore-installed .
requirements:
host:
- python
- pip
- setuptools
run:
- python
- numpy
- p$ python --help
usage: python [option] ... [-c cmd | -m mod | file | -] [arg] ...
Options and arguments (and corresponding environment variables):
...
-E : ignore PYTHON* environment variables (such as PYTHONPATH)
-s : don't add usFROM continuumio/anaconda3:latest
ARG DEBIAN_FRONTEND=noninteractive
WORKDIR /bob
COPY . /bob/
RUN apt update
RUN apt install -y build-essential libopencv-dev python3-opencv ffmpeg libsndfile1 libsndfile-dev wget git tmux
RUN conda env cimport pandas as pd
df = pd.DataFrame({'col1': [1, 2, 3, 4, 5], 'col2': ['7.7/10', '8.2/10', '5.8/10', '9.2/10', '8.9/10']})
def fun(x):
a, b = x.split("/")
return float(a) * (1 / float(b))
res = df["col2"].apply(fun)
print(repip install pandas --upgrade
Community Discussions
Trending Discussions on numexpr
QUESTION
I am trying to build an app from a python file (Mac OS) using the py2app extension. I have a folder with the python file and the "setup.py" file.
- I first tested the app by running
python setup.py py2app -Ain the terminal and the dist and build folder are successfully created and the app works when launched. - Now when I try to build it non-locally by running the command
python setup.py py2appin the terminal, there are various "WARNING: ImportERROR" messages while building and finally aerror: [Errno 2] No such file or directory: '/opt/anaconda3/lib/python3.8/site-packages/rtree/lib'error.
How can I fix this? I've tried to delete anaconda fully as I don't use it but it seems to still want to run through it. Additionally, I have tried to run the build command using a virtual environment but I end up having even more import errors.
*I Left out a lot of the "skipping" and "warning" lines using "..." for space
ANSWER
Answered 2022-Mar-13 at 16:13The error error: [Errno 2] No such file or directory: '/opt/anaconda3/lib/python3.8/site-packages/rtree/lib' was caused by py2app trying to build the program bundle using a non-existent interpreter. This means that even if you try to uninstall a manager like Anaconda, it still has option logs somewhere on your mac.
The fix:
- Open the terminal and type the command
type -a python.
- You will see similar lines
QUESTION
I am working with python and pandas. I have a dataset of lab analysis where I am dealing with multiple parameters and detection limits(dl). Many of the samples are reported as below the dl (e.g.<4)
For example:
...ANSWER
Answered 2022-Mar-09 at 06:46Use replace instead str.replace than eval all expressions:
QUESTION
I have a local python project called jive that I would like to use in an another project. My current method of using jive in other projects is to activate the conda env for the project, then move to my jive directory and use python setup.py install. This works fine, and when I use conda list, I see everything installed in the env including jive, with a note that jive was installed using pip.
But what I really want is to do this with full conda. When I want to use jive in another project, I want to just put jive in that projects environment.yml.
So I did the following:
- write a simple
meta.yamlso I could use conda-build to buildjivelocally - build jive with
conda build . - I looked at the tarball that was produced and it does indeed contain the
jivesource as expected - In my other project, add jive to the dependencies in
environment.yml, and add 'local' to the list of channels. - create a conda env using that environment.yml.
When I activate the environment and use conda list, it lists all the dependencies including jive, as desired. But when I open python interpreter, I cannot import jive, it says there is no such package. (If use python setup.py install, I can import it.)
How can I fix the build/install so that this works?
Here is the meta.yaml, which lives in the jive project top level directory:
ANSWER
Answered 2022-Feb-05 at 04:16The immediate error is that the build is generating a Python 3.10 version, but when testing Conda doesn't recognize any constraint on the Python version, and creates a Python 3.9 environment.
I think the main issue is that python >=3.5 is only a valid constraint when doing noarch builds, which this is not. That is, once a package builds with a given Python version, the version must be constrained to exactly that version (up through minor). So, in this case, the package is built with Python 3.10, but it reports in its metadata that it is compatible with all versions of Python 3.5+, which simply isn't true because Conda Python packages install the modules into Python-version-specific site-packages (e.g., lib/python-3.10/site-packages/jive).
Typically, Python versions are controlled by either the --python argument given to conda-build or a matrix supplied by the conda_build_config.yaml file (see documentation on "Build variants").
Try adjusting the meta.yaml to something like
QUESTION
Suddenly, I can't import pandas in python. I am using anaconda as package manager, but it seems that no matter how many times I uninstall and install pandas, I still get the same error:
...ANSWER
Answered 2022-Jan-24 at 04:57Yes, it appears to be loading pandas from a user-level installation. User-level installs can leak into Conda environments and lead to unpredictable behavior, such as what you are seeing.
There are two routes of action of which I know. You may want to try the second one first, which would confirm the cause. However, the first option is likely more manageable going forward, since once it's done, the issue should be resolved.
Option 1: Remove External Python(s)If you would like Conda to simply work as expected, then uninstall the user-level Python. Note that the one detected (Python 3.10) may not be the only one, so you may have to track down multiple copies. I'm not on Windows, so I can't suggest concrete steps for uninstallation.
However, you may be already using this user-level Python for other projects, so this option may not be practicable.
Option 2: Launch Python with Isolation FlagsThere are some pertinent flags that Python provides that has it ignore the various sources that can lead to leaking in other site-packages. Here are the three important ones:
QUESTION
Good day
I am getting an error while importing my environment:
...ANSWER
Answered 2021-Dec-03 at 09:22Build tags in you environment.yml are quite strict requirements to satisfy and most often not needed. In your case, changing the yml file to
QUESTION
I'm trying to install bob.learn.em, but there is not any documented straightforward approach to install bob.
There are some very old resources like these to install bob:
https://hub.docker.com/r/artimi/bob
https://github.com/Artimi/bob_docker_image/blob/master/Dockerfile
But none of them can not install bob.learn.em or any latest bob packages.
I am unsuccessful while trying both pip and conda, the official document (https://www.idiap.ch/software/bob/docs/bob/docs/stable/install.html) doesn't work (at least for my system, I even tried conda in a docker container)
Is there any docker container or reproducible recipe for installing bob and bob packages like bob.learn.em?
errors inside anaconda3 container,
...ANSWER
Answered 2021-Oct-22 at 21:17Wrote this simple dockerfile.
Dockerfile
QUESTION
I want to install specific packages in a docker container. For most of them, the pip installation works fine. However, it seems like some of the versions of the packages cannot be found.
Here's the requirements.txt file from which I'm installing the packages. It was obtained from pip freeze done in PyCharm from Windows.
Currently, I am trying to install them in Docker working on Ubuntu 20.04.
...ANSWER
Answered 2021-Oct-12 at 09:25Try to use some other version of ipython.
Replace the python version in your requirements.txt with:
ipython==7.24.1
However, it doesn't have anything to do with docker configuration i.e. --network=host
QUESTION
data source: https://catalog.data.gov/dataset/nyc-transit-subway-entrance-and-exit-data
I tried looking for a similar problem but I can't find an answer and the error does not help much. I'm kinda frustrated at this point. Thanks for the help. I'm calculating the closest distance from a point.
...ANSWER
Answered 2021-Oct-11 at 14:21geopandas 0.10.1
- have noted that your data is on kaggle, so start by sourcing it
- there really is only one issue
shapely.geometry.MultiPoint()constructor does not work with a filtered series. Pass it a numpy array instead and it works. - full code below, have randomly selected a point to serve as
gpdPoint
QUESTION
I am trying to work with Featuretools to develop an automated feature engineering workflow for the customer churn dataset. The end outcome is a function that takes in a dataset and label times for customers and builds a feature matrix that can be used to train a machine learning model.
As part of this exercise I am trying to execute the below code for plotting a histogram and got "TypeError: import_optional_dependency() got an unexpected keyword argument 'errors' ". Please help resolve this TypeError.
...ANSWER
Answered 2021-Sep-14 at 20:32Try to upgrade pandas:
QUESTION
I'm getting this error while trying to run this code in google colab:
...ANSWER
Answered 2021-Oct-01 at 12:41This looks like a known issue in NLTK. Perhaps update the NLTK version.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install numexpr
You can use numexpr like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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