smart_open | Utils for streaming large files
kandi X-RAY | smart_open Summary
kandi X-RAY | smart_open Summary
Utils for streaming large files (S3, HDFS, gzip, bz2...)
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Top functions reviewed by kandi - BETA
- Seek to the current position
- Wrapper around get_object
- Unwrap an IOError
- Opens the content range
- Move to the specified offset
- Clamp a value
- Make a partial request
- Empty the buffer
- Read a line from the stream
- Upload bytes to the stream
- Get an iterator over an S3 bucket
- Extract preamble and body from a file
- Read data into b
- Reads the contents of a file
- Close the upload
- Copy text to the clipboard
- Get the version string
- Download a key from S3
- Read data into b
- Returns a raw byte buffer
- Read up to size bytes from the stream
- Register a callback for a file extension
- Print out the docstring of the open function
- Register a transport
- Open a file using smart_open
- Open a given URI
smart_open Key Features
smart_open Examples and Code Snippets
Community Discussions
Trending Discussions on smart_open
QUESTION
I have files in s3 as gzip chunks, thus I have to read the data continuously and cant read random ones. I always have to start with the first file.
For example lets say I have 3 gzip file in s3, f1.gz
, f2.gz
, f3.gz
. If I download all locally, I can do cat * | gzip -d
. If I do cat f2.gz | gzip -d
, it will fail with gzip: stdin: not in gzip format
.
How can I stream these data from s3 using python? I saw smart-open and it has the ability to decompress gz files with
...ANSWER
Answered 2022-Mar-31 at 14:14For example lets say I have 3 gzip file in s3,
f1.gz
,f2.gz
,f3.gz
. If I download all locally, I can docat * | gzip -d
.
One idea would be to make a file object to implement this. The file object reads from one filehandle, exhausts it, reads from the next one, exhausts it, etc. This is similar to how cat
works internally.
The handy thing about this is that it does the same thing as concatenating all of your files, without the memory use of reading in all of your files at the same time.
Once you have the combined file object wrapper, you can pass it to Python's gzip
module to decompress the file.
Examples:
QUESTION
I have this code :
...ANSWER
Answered 2022-Feb-04 at 06:08The 'current working directory' that the Python process will consider active, and thus will use as the expected location for your plain relative filename GoogleNews-vectors-negative300.bin
, will depend on how you launched Flask.
You could print out the directory to be sure – see some ways at How do you properly determine the current script directory? – but I suspect it may just be the /Users/Ile-Maurice/Desktop/Flask/flaskapp/
directory.
If so, you could relatively-reference your file with the path relative to the above directory...
QUESTION
How do I read an image using the rawpy library, from a url?
I have tried
...ANSWER
Answered 2022-Jan-27 at 12:20JPEG is not a Raw Image Format. You need to send some raw data as input.
So,
- If you just want to process some JPEGs, try Pillow.
- If you want to process raw images, change your input data.
QUESTION
I am working on a project where I have to scrape maximum URLs (placed in an S3 bucket's file) in a limited time and store them in searchable database. Right now I am having an issue while scraping web pages inside aws lambda. I have a function for my task which when runs in a google Collab environment takes only 7-8 seconds to execute and produce the desired results. But the same function when deployed as lambda is taking almost 10X more time to execute. Here is my code:
...ANSWER
Answered 2021-Nov-15 at 20:51The only thing that you can configure to affect performance is memory allocation. Try increasing the memory allocated for your function, until you have at least the same performance as with Collab.
Billing shouldn't affected much, as it is calculated as the product of memory and execution time.
QUESTION
I've been working on a project which so far has just involved building some cloud infrastructure, and now I'm trying to add a CLI to simplify running some AWS Lambdas. Unfortunately both the sdist and wheel packages built using poetry build
don't seem to include the dependencies, so I have to manually pip install
all of them to run the command. Basically I
- run
poetry build
in the project, cd "$(mktemp --directory)"
,python -m venv .venv
,. .venv/bin/activate
,pip install /path/to/result/of/poetry/build/above
, and then- run the new .venv/bin/ executable.
At this point the executable fails, because pip
did not install any of the package dependencies. If I pip show PACKAGE
the Requires
line is empty.
The Poetry manual doesn't seem to specify how to link dependencies to the built package, so what do I have to do instead?
I am using some optional dependencies, could that be interfering with the build process? To be clear, even non-optional dependencies do not show up in the package dependencies.
pyproject.toml:
...ANSWER
Answered 2021-Nov-04 at 02:15This appears to be a bug in Poetry. Or at least it's not clear from the documentation what the expected behavior would be in a case such as yours.
In your pyproject.toml
, you specify two dependencies as required in this section:
QUESTION
I have the following two issues with h5py
when passing it a Python file-like object that streams data over a network connection (the file-like object is efficient, e.g. doesn't perform full file scans for ranged reads, using smart_open
).
h5py
appears to make many calls toread(...)
each time reading ~115k bytes (each read varies by a few hundred bytes).h5py
appears to be operating in column major mode, even though this article says it's row major, with a documentation reference.
I was able to count read calls by setting the read
function on my file object to a local read function that counts calls and bytes, using functools.partial
to do so.
My data is shaped as such:
...ANSWER
Answered 2021-Oct-22 at 19:36Compression and chunked I/O are features of HDF5/h5py. (Compression is automatically implemented when chunked I/O is used). Start by checking the dataset chunksize attribute: print(h5file['table'].chunks)
. Likely this will confirm the 115k value you see. The chunk shape should also indicate why you see read order as column major instead of row major -- because chunk shape1 is larger than chunk shape[0].
If the chunk size is causing the problem, you should use larger chunk size. However, AFAIK, you have to create a new file with new datasets to change to do so.
For reference, here is an example showing a simple array written with 3 different chunk shapes defined. The file is closed then reopened in read mode. Data is read and written to a new file using a larger chunk size. This works around a h5py limitation with group.copy()
(it uses the same chunk parameter when it copies datasets). You can also copy datasets and modify chunk I/O attributes with the 'h5repack' external utility from The HDF Group, ref: h5repack doc page.
QUESTION
I am looking to use a FastText model in a ML pipeline that I made and saved as a .bin
file on s3. My hope is to keep this all in a cloud based pipeline, so I don't want local files. I feel like I am really close, but I can't figure out how to make a temporary .bin
file. I also am not sure if I am saving and reading the FastText model in the most efficient way. The below code works, but it saves the file locally which I want to avoid.
ANSWER
Answered 2021-Oct-06 at 16:50If you want to use the fasttext
wrapper for the official Facebook FastText code, you may need to create a local temporary copy - your troubles make it seem like that code relies on opening a local file path.
You could also try the Gensim
package's separate FastText
support, which should accept an S3 path via its load_facebook_model()
function:
https://radimrehurek.com/gensim/models/fasttext.html#gensim.models.fasttext.load_facebook_model
(Note, though, that Gensim doesn't support all FastText functionality, like the supervised
mode.)
QUESTION
Good day everyone, hope you're doing really well. I would like to start this question by prefacing that I'm a real newbie when it comes to setting up projects in the right way. Right now I'm working on a Django app with a friend that already has some more experience with web development and he had already set up everything with Docker-compose, that is, we have containers for our Django app, MySQL, Celery, RabbitMQ, etc.
Now, I'm working on the back-end side of our project and need to add a new package to the list of packages the app container has: Smart-Open. The thing is, I have no idea how to do that. I'm on Windows, and using Git Bash to launch the docker-compose containers. What I've tried is opened the bash of the web app container and tried to pipenv install the module from there, but it was extremely slow, which made the Pipfile updating timeout:
...ANSWER
Answered 2021-Jul-30 at 06:28Does your project directory contain a docker-compose.yml, a Dockerfile, and a requirements.txt file? If so, then the following steps might help.
Open your requirements.txt. You should see all of the python project dependencies listed here. For example, it might look like this initially:
QUESTION
Suppose I have a json file like -
...ANSWER
Answered 2021-Jul-16 at 17:57Let me show you with an example how you can do this:
QUESTION
I'm working on a django project where I have to use Doc2Vec model to predict most similar articles based on the user input. I have trained a model with the help of articles in our database and when I test that model using a python file .py
by right clicking in the file and selecting run from the context menu its working. The problem is Now I'm moving that working code to a django function to load model and predict article based on user-given abstract text But I'm getting FileNotFoundError
.
I have searched how to load model in django and it seems the way is already OK. here is the complete exception:
FileNotFoundError at /searchresult
[Errno 2] No such file or directory: 'd2vmodel.model'
Request Method: GET
Request URL: http://127.0.0.1:8000/searchresult
Django Version: 3.1.5
Exception Type: FileNotFoundError
Exception Value:
[Errno 2] No such file or directory: 'd2vmodel.model'
Exception Location: C:\Users\INZIMAM_TARIQ\AppData\Roaming\Python\Python37\site-packages\smart_open\smart_open_lib.py, line 346, in _shortcut_open
Python Executable: C:\Program Files\Python37\python.exe
Python Version: 3.7.9
Python Path:
['D:\Web Work\doc2vec final submission',
'C:\Program Files\Python37\python37.zip',
'C:\Program Files\Python37\DLLs',
'C:\Program Files\Python37\lib',
'C:\Program Files\Python37',
'C:\Users\INZIMAM_TARIQ\AppData\Roaming\Python\Python37\site-packages',
'C:\Program Files\Python37\lib\site-packages']
Server time: Mon, 24 May 2021 12:44:47 +0000
D:\Web Work\doc2vec final submission\App\views.py, line 171, in searchresult
model = Doc2Vec.load("d2vmodel.model")
Here is my django function where I'm loading Doc2Vec model.
...ANSWER
Answered 2021-May-24 at 13:16Move the models from App to root directory of your project, I think it is 'doc2vec final submission'
Or create a folder inside 'doc2vec final submission' named 'models'
Change this
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Install smart_open
You can use smart_open 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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