python-3.8

Deserialization of large numpy arrays using pickle is order of magnitude slower than using numpy

淺唱寂寞╮ 提交于 2020-06-16 05:44:29
问题 I am deserializing large numpy arrays (500MB in this example) and I find the results vary by orders of magnitude between approaches. Below are the 3 approaches I've timed. I'm receiving the data from the multiprocessing.shared_memory package, so the data comes to me as a memoryview object. But in these simple examples, I just pre-create a byte array to run the test. I wonder if there are any mistakes in these approaches, or if there are other techniques I didn't try. Deserialization in Python

Deserialization of large numpy arrays using pickle is order of magnitude slower than using numpy

ぃ、小莉子 提交于 2020-06-16 05:41:52
问题 I am deserializing large numpy arrays (500MB in this example) and I find the results vary by orders of magnitude between approaches. Below are the 3 approaches I've timed. I'm receiving the data from the multiprocessing.shared_memory package, so the data comes to me as a memoryview object. But in these simple examples, I just pre-create a byte array to run the test. I wonder if there are any mistakes in these approaches, or if there are other techniques I didn't try. Deserialization in Python

Deserialization of large numpy arrays using pickle is order of magnitude slower than using numpy

↘锁芯ラ 提交于 2020-06-16 05:41:10
问题 I am deserializing large numpy arrays (500MB in this example) and I find the results vary by orders of magnitude between approaches. Below are the 3 approaches I've timed. I'm receiving the data from the multiprocessing.shared_memory package, so the data comes to me as a memoryview object. But in these simple examples, I just pre-create a byte array to run the test. I wonder if there are any mistakes in these approaches, or if there are other techniques I didn't try. Deserialization in Python

Error :cannot use a string pattern on a bytes-like object

霸气de小男生 提交于 2020-06-16 05:01:28
问题 Hy am using Python RegEx to show all internet wirless profiles connected to a computer.There is error (TypeError: cannot use a string pattern on a bytes-like object) in my Second last line pls anyone help to identifi my mistake.Thanks My Program import subprocess,re command = "netsh wlan show profile" output = subprocess.check_output(command, shell=True) network_names = re.search("(Profile\s*:\s)(.*)", output) print(network_names.group(0)) .....................................................

Pandas dataframe dump to excel with color formatting

会有一股神秘感。 提交于 2020-05-31 03:54:04
问题 I have a large pandas dataframe df as: Sou ATC P25 P75 Avg A 11 9 15 10 B 6.63 15 15 25 C 6.63 5 10 8 I want to print this datamframe to excel file but I want to apply formatting to each row of the excel file such that following rules are applied to cells in ATC and Avg columns: colored in red if value is less than P25 colored in green if value is greater than P75 colored in yellow if value is between P25 and P75 Sample display in excel is as follows: I am not sure how to approach this. 回答1:

python 3.8 venv missing activate command

家住魔仙堡 提交于 2020-05-29 05:25:11
问题 I compiled Python 3.8.1 under a user's home directory with configure --prefix=/home/a_user/python3.8 --enable-shared When I tried to use venv, I get: python3 -m venv test_env Error: Command '['/home/a_user/test_env/bin/python3', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1. test_env is created but incomplete: test_env/ ├── bin │ ├── python -> python3 │ └── python3 -> /home/a_user/python3.8/bin/python3 ├── include ├── lib │ └── python3.8 │ └── site

python 3.8 venv missing activate command

陌路散爱 提交于 2020-05-29 05:24:05
问题 I compiled Python 3.8.1 under a user's home directory with configure --prefix=/home/a_user/python3.8 --enable-shared When I tried to use venv, I get: python3 -m venv test_env Error: Command '['/home/a_user/test_env/bin/python3', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1. test_env is created but incomplete: test_env/ ├── bin │ ├── python -> python3 │ └── python3 -> /home/a_user/python3.8/bin/python3 ├── include ├── lib │ └── python3.8 │ └── site

Msys2: readline in two python installations

血红的双手。 提交于 2020-05-24 05:14:43
问题 I am top-posting EDITs so the reader does not need to locate the current status. This is a specific question related to the two python installations mentioned in Msys2: Maintaining two python installations $ pacman -Sl | grep "python " | grep "installed" mingw64 mingw-w64-x86_64-python 3.8.2-2 [installed] msys python 3.8.2-1 [installed] EDIT #2 : It became clear that readline s quoted below were not python packages, but for shells. As for readline for python, the files provided by each

How to install Tensorflow with Python3.8

☆樱花仙子☆ 提交于 2020-05-23 21:12:27
问题 Whenever I try to install tensorflow with pip on python3.8 I get that tensorflow is not found . I have realized later on that it is not supported with python3.8 , but I don't know how to make it run. 回答1: As you mentioned, it is currently not supported by python3.8 , but python3.7 . You want to have virtualenv installed. You also need python3.7 . Then you can just start a virtualenv with python3.7 and install it using pip like you did before. virtualenv --system-site-packages -p python3.7

PyWin32 and Python 3.8.0

冷暖自知 提交于 2020-05-17 07:12:46
问题 Python 3.8.0 has been recently released (on 20191014 , and can be downloaded from [Python]: Python 3.8.0). PyWin32 has builds for it on [PyPI]: pywin32 225 (released on 20190915 ). Unfortunately, after pip install ing, it doesn't work. Sample: [cfati@CFATI-5510-0:e:\Work\Dev\StackOverflow\q058631512]> sopr.bat *** Set shorter prompt to better fit when pasted in StackOverflow (or other) pages *** [prompt]> "e:\Work\Dev\VEnvs\py_064_03.07.03_test0\Scripts\python.exe" Python 3.7.3 (v3.7.3