A downloader of PPMI metadata and imaging data files.

Example usage

import ppmi_downloader
ppmi = ppmi_downloader.PPMIDownloader()

# Download metadata files
ppmi.download_metadata(['Demographics.csv', 'Age_at_visit.csv'])

# Download 3D imaging metadata
ppmi.download_3D_T1_info()

# Download imaging data (in DICOM format)
ppmi.download_imaging_data([3001, 3003, 3011])

# Download imaging data (in Nifti format)
ppmi.download_imaging_data([3001, 3003, 3011], type='nifti')

Scripts to use Selenium Grid

ppmi_scrapper provides scripts for building and running selenium webdriver

build_selenium

Build selenium grid singularity container

This function is intended to be used as script so arguments are passed by environment variables. PPMI_SINGULARITY_BUILD_CACHE: cache folder to store the built image PPMI_SINGULARITY_SELENIUM_VERSION: version of selenium used PPMI_SINGULARITY_BUILD_VERBOSE: enable verbose mode for the build PPMI_SINGULARITY_BUILD_LOG: log file name to dump build's outputs

Upon success, it exits with 0. Upon failure, Client raises exceptions caught by the script wrapper generated during the build

run_selenium

Run selenium grid singularity container

This function is intended to be used as script so arguments are passed by environment variables. PPMI_SINGULARITY_SELENIUM_VERSION: version of selenium used PPMI_SINGULARITY_RUN_CACHE: cache folder to find the built image PPMI_SINGULARITY_RUN_VERBOSE: enable verbose mode for the run PPMI_SINGULARITY_RUN_LOG: log file name to dump run's outputs Run the selenium grid singularity container by creating and binding files required by the container Communication is mapped on 4444 port.

Upon success, it exits with 0. Upon failure, Client raises exceptions caught by the script wrapper generated during the run