python - pyproj FutureWarning: '+init=：' syntax is deprecated

Answer 1

In order to keep using the old syntax (feeding the transformer (Lon,Lat) pairs) you can use the always_xy=True parameter when creating the transformer object:

from pyproj import Transformer
transformer = Transformer.from_crs(4326, 3857, always_xy=True)
points = [
    (6.783333, 51.233333),  # Dusseldorf
    (-122.416389, 37.7775)  # San Francisco
]
for pt in transformer.itransform(points):
    print(pt)

Output

(755117.1754412088, 6662671.876828446)
(-13627330.088231295, 4548041.532457043)

Answer 2

This is my current guess for the fix:

    #e4326=Proj(init='epsg:4326')
    e4326=CRS('EPSG:4326')
    #e3857=Proj(init='epsg:3857')
    e3857=CRS('EPSG:3857')

Projection helper class

from pyproj import Proj, CRS,transform

class Projection:
    '''
    helper to project lat/lon values to map
    '''
    #e4326=Proj(init='epsg:4326')
    e4326=CRS('EPSG:4326')
    #e3857=Proj(init='epsg:3857')
    e3857=CRS('EPSG:3857')

    @staticmethod
    def wgsToXy(lon,lat):
        t1=transform(Projection.e4326,Projection.e3857, lon,lat)
        #t2=transform(Proj('epsg:4326'), Proj('epsg:3857'), lon,lat)
        return t1

    @staticmethod
    def pointToXy(point):
        xy=point.split(",")
        return Projection.wgsToXy(float(xy[0]),float(xy[1]))