pystream-protobuf | Python implementation of stream library | Serialization library
kandi X-RAY | pystream-protobuf Summary
kandi X-RAY | pystream-protobuf Summary
pystream-protobuf is a Python library typically used in Telecommunications, Media, Media, Entertainment, Utilities, Serialization applications. pystream-protobuf has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has low support. You can install using 'pip install pystream-protobuf' or download it from GitHub, PyPI.
This library enables stream processing of protobuf messages (or any serializable objects since v1.6.3); i.e. multiple protobuf messages can be written/read into/from a single stream or file. It was originally developed to parse/write vg file formats (.vg, .gam, etc). However, it can be used for any arbitrary protocol buffer messages. Refer to the C++ stream library for more details. @vg users: The new version of stream library, now as a part of libvgio, writes a header at the start of the stream depending on the output format. For example, headers like b'GAM' or b'VG' can be found before the actual protobuf messages in GAM and VG files repectively. In this case, you should provide the expected value using header keyword argument; e.g. stream.parse('file.gam', vg_pb2.Alignment, header=b'GAM') for GAM files (since version v1.6.2).
This library enables stream processing of protobuf messages (or any serializable objects since v1.6.3); i.e. multiple protobuf messages can be written/read into/from a single stream or file. It was originally developed to parse/write vg file formats (.vg, .gam, etc). However, it can be used for any arbitrary protocol buffer messages. Refer to the C++ stream library for more details. @vg users: The new version of stream library, now as a part of libvgio, writes a header at the start of the stream depending on the output format. For example, headers like b'GAM' or b'VG' can be found before the actual protobuf messages in GAM and VG files repectively. In this case, you should provide the expected value using header keyword argument; e.g. stream.parse('file.gam', vg_pb2.Alignment, header=b'GAM') for GAM files (since version v1.6.2).
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Support
pystream-protobuf has a low active ecosystem.
It has 32 star(s) with 12 fork(s). There are 5 watchers for this library.
It had no major release in the last 12 months.
There are 1 open issues and 17 have been closed. On average issues are closed in 50 days. There are no pull requests.
It has a neutral sentiment in the developer community.
The latest version of pystream-protobuf is 1.6.4
Quality
pystream-protobuf has 0 bugs and 0 code smells.
Security
pystream-protobuf has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
pystream-protobuf code analysis shows 0 unresolved vulnerabilities.
There are 0 security hotspots that need review.
License
pystream-protobuf is licensed under the MIT License. This license is Permissive.
Permissive licenses have the least restrictions, and you can use them in most projects.
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pystream-protobuf releases are available to install and integrate.
Deployable package is available in PyPI.
Build file is available. You can build the component from source.
Installation instructions, examples and code snippets are available.
pystream-protobuf saves you 207 person hours of effort in developing the same functionality from scratch.
It has 619 lines of code, 44 functions and 8 files.
It has high code complexity. Code complexity directly impacts maintainability of the code.
Top functions reviewed by kandi - BETA
kandi has reviewed pystream-protobuf and discovered the below as its top functions. This is intended to give you an instant insight into pystream-protobuf implemented functionality, and help decide if they suit your requirements.
- Parse a file - like object
- Create a stream from a file
- The delimiter class
- Dump the given objects to a file
- Write objects to the buffer
- Write the output buffer
- Write the header
- Return True if the file is an output
- Return True if the stream is asynchronous
- Encode an integer
- Encode a single value
- Decode the input file
- Decode a binary file
Get all kandi verified functions for this library.
pystream-protobuf Key Features
No Key Features are available at this moment for pystream-protobuf.
pystream-protobuf Examples and Code Snippets
python protocol buffers: deserializing messages without loading entire file into memory?
Python
Lines of Code : 20License : Strong Copyleft (CC BY-SA 4.0)
Lines of Code : 20License : Strong Copyleft (CC BY-SA 4.0)
Copyimport feed_pb2 as sfeed
import sys
from google.protobuf.internal.encoder import _VarintBytes
from google.protobuf.internal.decoder import _DecodeVarint32
with open('/home/working/data/feed.pb', 'rb') as f:
buf = f.read(10) # Maximum Community Discussions
Trending Discussions on pystream-protobuf
QUESTION
python protocol buffers: deserializing messages without loading entire file into memory?
Asked 2019-Oct-18 at 20:49
I am using Google Protocol Buffers and Python to decode some large data files--200MB each. I have some code below that shows how to decode a delimited stream and it works just fine. However it uses the read() command which loads the whole file into memory and then iterates over it.
ANSWER
Answered 2019-Oct-18 at 20:49If it is ok to load one full message at a time, this is quite simple to implement by modifying the code you posted:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install pystream-protobuf
You can install pyStream using pip:.
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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