neo4j-python-driver | Neo4j Bolt driver for Python | Database library
kandi X-RAY | neo4j-python-driver Summary
kandi X-RAY | neo4j-python-driver Summary
Neo4j Bolt driver for Python
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Top functions reviewed by kandi - BETA
- Perform a read access transaction
- Run a transaction
- Format a record
- Disconnect from the remote device
- Run a read access transaction
- Initialize the connection
- Disconnect from the remote host
- Executes read access
- Execute a read access access
- Get all bookmarks from the book
- Perform a handshake
- Run a query
- Process a received message
- Establish a connection
- Process a single message
- Processes a received message
- Establish a connection to the given address
- Shortcut for write access
- Initiate a write access function
- Execute a write access
- Begin a new transaction
- Generate a Date object from a given ordinal
- Dehydrator for a datetime
- Get the routing table for the given database
- Route to database
- Create a routing table
neo4j-python-driver Key Features
neo4j-python-driver Examples and Code Snippets
Community Discussions
Trending Discussions on neo4j-python-driver
QUESTION
I am having trouble parallelizing code that reads some files and writes to neo4j.
- I am using dask to parallelize the process_language_files function (3rd cell from the bottom).
- I try to explain the code below, listing out the functions (First 3 cells).
- The errors are printed at the end (Last 2 cells).
- I am also listing environments and package versions at the end.
If I remove dask.delayed and run this code sequentially, its works perfectly well.
Thank you for your help. :)
==========================================================================
Some functions to work with neo4j.
...ANSWER
Answered 2021-Jan-12 at 08:07You are getting this error because you are trying to share the driver object amongst your worker.
The driver object contains private data about the connection, data that do not make sense outside the process (and also are not serializable).
It is like trying to open a file somewhere and share the file descriptor somewhere else. It won't work because the file number makes sense only within the process that generates it.
If you want your workers to access the database or any other network resource, you should give them the directions to connect to the resource.
In your case, you should not pass the global_driver
as a parameter but rather the connection parameters and let each worker call get_driver
to get its own driver.
QUESTION
I have a Node.js application that connects to neo4j. Running it normally works well, I'm able to connect. However, when I run it inside Docker I run into this error:
...ANSWER
Answered 2020-May-14 at 23:26Your docker image runs in an isolated network so it does not have access to your neo4j at localhost:7687
In your javascript file, try changing the url you're connecting to to your host-ip instead of localhost
. You can find that with running ip addr show
.
Better yet, you can pass host mappings to your container with the --add-host
flag - add host to container example
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install neo4j-python-driver
You can use neo4j-python-driver 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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