cityhash | Python-bindings for CityHash

by Amper C++ Version: Current License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | cityhash Summary

cityhash is a C++ library. cityhash has no bugs and it has low support. However cityhash has 1 vulnerabilities and it has a Non-SPDX License. You can download it from GitHub.

Python-bindings for CityHash (http://code.google.com/p/cityhash/)

Support

Quality

Security

License

Reuse

Support

cityhash has a low active ecosystem.

It has 32 star(s) with 27 fork(s). There are 4 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 1 have been closed. On average issues are closed in 22 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of cityhash is current.

Quality

cityhash has 0 bugs and 0 code smells.

Security

cityhash has 1 vulnerability issues reported (0 critical, 0 high, 1 medium, 0 low).

cityhash code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

cityhash has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

cityhash releases are not available. You will need to build from source code and install.

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cityhash Key Features

No Key Features are available at this moment for cityhash.

cityhash Examples and Code Snippets

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Community Discussions

Trending Discussions on cityhash

Multiple errors when trying to install tensorflow gpu beta 2.0 in virtual env on a windows machine using pip

Missing instruction `_mm_crc32_u64` when installing clickhouse-cityhash on OSX 10.14.5

Which string hashing algorithm produces 32-bit or 64-bit signed integers?

QUESTION

Multiple errors when trying to install tensorflow gpu beta 2.0 in virtual env on a windows machine using pip

Asked 2019-Oct-15 at 17:12

I am trying to install tensorflow 2.0 beta on my windows machine using pip. I am using the requirements.txt from https://github.com/ageron/handson-ml2/blob/master/requirements.txt

The only change I have made is to use the beta tensorflow version instead of the tf-nightly-preview version.

#tf-nightly-2.0-preview
#tf-nightly-gpu-2.0-preview
tensorflow-gpu==2.0.0-beta1

I am getting three errors -

...

ANSWER

Answered 2019-Jul-07 at 06:52

In the newer commits for tfds - the cityhash library has been swapped with siphash.
For tensorflow the tb_nightly dependency is expected to be updated mid-July so if installing after that - the issue may not even arise.
Since cloudpickle versions for two packages are different need to upgrade one of them or downgrade the other.

Source https://stackoverflow.com/questions/56636196

QUESTION

Missing instruction `_mm_crc32_u64` when installing clickhouse-cityhash on OSX 10.14.5

Asked 2019-Jun-11 at 23:17

I am attempting to install clickhouse-cityhash with pip on OSX 10.14.5 but it fails with the following (abridged) output:

...

ANSWER

Answered 2019-Jun-11 at 22:43

Many thanks to @PeterCordes for his very valuable observations in the question comments above!

The failing build command during pip install clickhouse-cityhash included the -arch i386 flag. The default behaviour of x86 clang is to build 64-bit code despite the presence of this flag.

However, this does not appear to be Apple clang's default behaviour. If 32-bit code is generated then _mm_crc32_u32 would the largest CRC available, implying that _mm_crc32_u64 is not defined.

Therefore, one solution is not to use Apple clang.

Most developers using OSX will be familiar with the brew package manager and have it installed. You may find that you already have a version of gcc installed via brew as a dependency of another package.

Check with the following:

Source https://stackoverflow.com/questions/56549155

QUESTION

Which string hashing algorithm produces 32-bit or 64-bit signed integers?

Asked 2019-Mar-30 at 19:59

I want to hash strings of variable length (6-60 characters long) to 32-bit signed integers in order to save disk space in PostgreSQL.

I don't want to encrypt any data, and the hashing function needs to be reproducible and callable from Python. The problem is that I can only find Algorithms that produce unsigned integers (like CityHash), which therefore produce values of up to 2^32 instead of 2^31.

This is what I have thus far:

...

ANSWER

Answered 2017-Jul-24 at 12:53

create or replace function int_hash(s text)
returns int as $$

    select ('x' || left(md5(s), 8))::bit(32)::int
    ;
$$ language sql immutable;

select int_hash('1');
  int_hash  
------------
 -993377736

Source https://stackoverflow.com/questions/45279590

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install cityhash

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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