File file.py has 657 lines of code (exceeds 250 allowed). Consider refactoring.

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from __future__ import annotations

import logging
import os
import sys

File NASASRTMUtil.py has 636 lines of code (exceeds 250 allowed). Consider refactoring.

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from __future__ import annotations, print_function

import base64
import os
import sys

Function make_tiles has a Cognitive Complexity of 69 (exceeds 5 allowed). Consider refactoring.

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    def make_tiles(self, opts: Configuration) -> list[HgtTile]:
        """generate tiles from self.zData according to the given <opts>.area and
        return them as list of hgtTile objects.
        """
        area = opts.area or None

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File cli.py has 537 lines of code (exceeds 250 allowed). Consider refactoring.

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from __future__ import annotations

import os
import sys
from typing import cast

Function calcBbox has a Cognitive Complexity of 20 (exceeds 5 allowed). Consider refactoring.

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def calcBbox(area, corrx=0.0, corry=0.0):
    """calculates the appropriate bouding box for the needed files"""
    minLon, minLat, maxLon, maxLat = [
        float(value) - inc
        for value, inc in zip(area.split(":"), [corrx, corry, corrx, corry])

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Function initDirs has a Cognitive Complexity of 19 (exceeds 5 allowed). Consider refactoring.

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def initDirs(sources: List[str]) -> None:
    mkdir(NASASRTMUtilConfig.hgtSaveDir)
    for source in sources:
        source_type, source_resolution = source[:4], int(source[4])
        if source_type == "srtm":

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Function getNASAUrl has a Cognitive Complexity of 19 (exceeds 5 allowed). Consider refactoring.

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def getNASAUrl(area, resolution, srtmVersion):
    """determines the NASA download url for a given area."""
    hgtIndexFile = NASASRTMUtilConfig.NASAhgtIndexFileRe.format(resolution, srtmVersion)
    hgtFileServer = NASASRTMUtilConfig.getSRTMFileServer(resolution, srtmVersion)
    try:

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Function makeNasaHgtIndex has a Cognitive Complexity of 19 (exceeds 5 allowed). Consider refactoring.

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def makeNasaHgtIndex(resolution, srtmVersion):
    """generates an index file for the NASA SRTM server."""
    hgtIndexFile = NASASRTMUtilConfig.NASAhgtIndexFileRe.format(resolution, srtmVersion)
    if srtmVersion == 2.1:
        hgtIndexFileOldName = hgtIndexFile[:-9] + hgtIndexFile[-4:]

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Function intersecTiles has a Cognitive Complexity of 17 (exceeds 5 allowed). Consider refactoring.

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def intersecTiles(polygonList, corrx, corry):
    if not polygonList:
        return []
    secs = []
    for polygon in polygonList:

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Function makeFileNamePrefixes has a Cognitive Complexity of 15 (exceeds 5 allowed). Consider refactoring.

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def makeFileNamePrefixes(bbox, polygon, corrx, corry, lowercase=False):
    """generates a list of filename prefixes of the files containing data within the
    bounding box.
    """
    minLon, minLat, maxLon, maxLat = bbox

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Function getSRTMv3Areas has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.

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def getSRTMv3Areas(polygons):
    rawAreas = []
    for p in polygons:
        lons = sorted([el[0] for el in p])
        lats = sorted([el[1] for el in p])

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Function load has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

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    def load(self) -> None:
        """Load index from local file"""
        with open(self._index_file_name) as index_file:
            current_url = None
            for line in index_file:

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Function make_osm_filename has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

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def make_osm_filename(
    borders: BBox,
    opts: Configuration,
    input_files_names: list[str],
) -> str:

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Function build_common_parser has 32 lines of code (exceeds 25 allowed). Consider refactoring.

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def build_common_parser() -> ArgumentParser:
    parser = ArgumentParser(
        default_config_files=[CONFIG_FILENAME],
        usage="%(prog)s [options] [<hgt or GeoTiff file>] [<hgt or GeoTiff files>]"
        "\npyhgtmap generates contour lines from NASA SRTM and similar data"

Function parse_polygons_file has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.

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def parse_polygons_file(filename: str) -> tuple[str, PolygonsList]:
    """reads polygons from a file like one included in
    http://download.geofabrik.de/clipbounds/clipbounds.tgz
    and returns it as list of (<lon>, <lat>) tuples.
    """

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Function areaNeeded has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

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def areaNeeded(lat, lon, bbox, polygon, corrx, corry):
    """checks if a source file is needed depending on the bounding box and
    the passed polygon.
    """
    if polygon is None:

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Function __init__ has 8 arguments (exceeds 4 allowed). Consider refactoring.

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    def __init__(

Function main_internal has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

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def main_internal(sys_args: list[str]) -> None:
    opts, args = parse_command_line(sys_args)
    configure_logging(opts.logLevel)

    hgtDataFiles: list[tuple[str, bool]]

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Function downloadAndUnzip_Zip has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

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def downloadAndUnzip_Zip(opener, url, area, source):
    hgtSaveDir, hgtSaveSubDir = getDirNames(source)
    fileResolution = int(source[4])
    saveZipFilename = os.path.join(hgtSaveSubDir, url.split("/")[-1])
    saveFilename = os.path.join(hgtSaveSubDir, "{0:s}.hgt".format(area))

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Function getFiles has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

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def getFiles(
    area: str,
    polygon: PolygonsList | None,
    corrx: float,
    corry: float,

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