python-3.6

What are the differences between the purposes of generator functions and asynchronous generator functions

自作多情 提交于 2019-12-01 06:12:24
问题 In Python, asynchronous generator functions are coroutines, and generator functions are also coroutines. What are the differences between the purposes of generator functions and asynchronous generator functions? Thanks. 回答1: The purpose of PEP 525 -- Asynchronous Generators is pretty much similar to PEP 255 -- Simple Generators which introduced generators. It is mainly intented to make things easier to implement, only in a different domain (asynchronous one). From PEP 525: Essentially, the

Django migration with python3.6 ERROR:root:code for hash sha3_224 was not found

為{幸葍}努か 提交于 2019-12-01 04:22:57
Hello I read Django tutorials and I have an error related to specific sha3_224 hash function during the migration process. How to solve this problem? Thank you. (venv) linuxoid@linuxoid-ThinkPad-L540:~/myprojects/myproject$ python manage.py makemigrations ERROR:root:code for hash sha3_224 was not found. Traceback (most recent call last): File "/home/linuxoid/myprojects/venv/lib/python3.6/hashlib.py", line 121, in __get_openssl_constructor f = getattr(_hashlib, 'openssl_' + name) AttributeError: module '_hashlib' has no attribute 'openssl_sha3_224' During handling of the above exception,

Python Embeddable Zip File Doesn't Include lib/site-packages in sys.path

牧云@^-^@ 提交于 2019-11-30 22:52:03
I am attempting to update our Python version from 3.4 to 3.6. We are embedding Python into a C++ application, so it seemed logical to utilize the new (since Python 3.5) Windows x86 embeddable zip file . However, our application is failing to execute because "lib/site-packages" isn't being added to the sys.path variable. I have confirmed that after installing Python 3.6 on my machine, and running from the installed location, the sys.path variable contains (relative to the python directory): '...\\python36.zip' '...\\DLLs' '...\\lib' '...' '...\\lib\\site-packages' However, when I run from the

Compile fortran module with f2py and Python 3.6 on Windows 10

痞子三分冷 提交于 2019-11-30 22:29:10
I'm trying (and failing) to compile a fortran module (specifically igrf12.f from the BGS) using f2py and Python 3.6 on Windows 10. Python was installed using Anaconda 4.4.10. My setup: Python 3.6.3 |Anaconda custom (64-bit)| (default, Oct 15 2017, 03:27:45) [MSC v.1900 64 bit (AMD64)] on win32 Windows 10 Enterprise (version 1703) NumPy 1.14.0 I followed f2py directions from the SciPy documentation and a very helpful guide from Dr.Michael Hirsch. Dr.Hirsch has created the pyigrf12 module, but installation through pip failed for me, which is what initially sparked my interest in f2py. I will

How to use Asynchronous Comprehensions?

。_饼干妹妹 提交于 2019-11-30 22:28:22
I'm trying to use Python 3.6's async comprehensions in a MacOS Sierra (10.12.2), but I'm receiving a SyntaxError . Here is the code I've tried: print( [ i async for i in range(10) ] ) print( [ i async for i in range(10) if i < 4 ] ) [i async for i in range(10) if i % 2] I am receiving a syntax error for async loops : result = [] async for i in aiter(): if i % 2: result.append(i) All code is copy/paste from the PEP. Terminal Output: >>> print([i for i in range(10)]) [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] >>> print([i async for i in range(10)]) File "<stdin>", line 1 print([i async for i in range(10)])

HTTPS get using “requests” module in Google App Engine fails

此生再无相见时 提交于 2019-11-30 20:36:34
问题 I want to use the requests module in Google App Engine Python Standard Runtime Environment. Quote from official Google Cloud docs: You can use third-party libraries that are pure Python code with no C extensions, by copying the library into your application directory. If the third-party library is already built-in, bundled with the runtime, you can use the library without copying it into your app. Third party libraries must be implemented as pure Python code with no C extensions. If copied to

Tensorflow 1.10 TFRecordDataset - recovering TFRecords

戏子无情 提交于 2019-11-30 19:26:57
Notes: this question extends upon a previous question of mine . In that question I ask about the best way to store some dummy data as Example and SequenceExample seeking to know which is better for data similar to dummy data provided. I provide both explicit formulations of the Example and SequenceExample construction as well as, in the answers, a programatic way to do so. Because this is still a lot of code, I am providing a Colab (interactive jupyter notebook hosted by google) file where you can try the code out yourself to assist. All the necessary code is there and it is generously

Python Embeddable Zip File Doesn't Include lib/site-packages in sys.path

冷暖自知 提交于 2019-11-30 17:52:47
问题 I am attempting to update our Python version from 3.4 to 3.6. We are embedding Python into a C++ application, so it seemed logical to utilize the new (since Python 3.5) Windows x86 embeddable zip file. However, our application is failing to execute because "lib/site-packages" isn't being added to the sys.path variable. I have confirmed that after installing Python 3.6 on my machine, and running from the installed location, the sys.path variable contains (relative to the python directory): '..

Compile fortran module with f2py and Python 3.6 on Windows 10

牧云@^-^@ 提交于 2019-11-30 17:28:18
问题 I'm trying (and failing) to compile a fortran module (specifically igrf12.f from the BGS) using f2py and Python 3.6 on Windows 10. Python was installed using Anaconda 4.4.10. My setup: Python 3.6.3 |Anaconda custom (64-bit)| (default, Oct 15 2017, 03:27:45) [MSC v.1900 64 bit (AMD64)] on win32 Windows 10 Enterprise (version 1703) NumPy 1.14.0 I followed f2py directions from the SciPy documentation and a very helpful guide from Dr.Michael Hirsch. Dr.Hirsch has created the pyigrf12 module, but

Recommended way to install pip(3) on centos7

拟墨画扇 提交于 2019-11-30 11:54:36
问题 I am interrested in knowing the recommended way to install pip3 for python3.6 (as of today, may 2018) on current version of centos7 (7.5.1804) and the accepted answer of How to install pip in CentOS 7? seems to be outdated because: yum search -v pip outputs (among other things): python2-pip.noarch : A tool for installing and managing Python 2 packages Repo : epel python34-pip.noarch : A tool for installing and managing Python3 packages Repo : epel and python34-pip seems to be a (newer?)