Merge files within a directory when the ending of the filename matches a given string. Uses geopandas.

merge_spatial_dataframes.py

def concat_spatial_df(folder_to_search, ends_with=".shp"):
    """
    Merge spatial data layers that meet the ending provided by ends_with and within
    folder folder_to_search and it's children

    import os
    import pandas as pd
    import geopandas
    """
    # Find files to merge
    shps_to_join = list()
    for root, dirs, files in os.walk(folder_to_search, topdown=False):
        for fn in files:
            if fn.endswith(ends_with):
                shps_to_join.append(os.path.abspath(os.path.join(folder_to_search, fn)))

    # Merge all xsection shapefiles into one.
    crs = None
    dfs_to_join = list()
    for fn in shps_to_join:
        df = geopandas.GeoDataFrame.from_file(fn)
        crs = df.crs
        dfs_to_join.append(df)
    merged_df = geopandas.GeoDataFrame(pd.concat(dfs_to_join), crs=crs)
    return merged_df