Fix Python requirements upgrade script
Fix Python requirements upgrade script

jrosco/securedrop,micahflee/securedrop,ehartsuyker/securedrop,GabeIsman/securedrop,jaseg/securedrop,jaseg/securedrop,conorsch/securedrop,jaseg/securedrop,ageis/securedrop,heartsucker/securedrop,GabeIsman/securedrop,kelcecil/securedrop,chadmiller/securedrop,jaseg/securedrop,micahflee/securedrop,pwplus/securedrop,garrettr/securedrop,chadmiller/securedrop,chadmiller/securedrop,kelcecil/securedrop,garrettr/securedrop,pwplus/securedrop,jaseg/securedrop,heartsucker/securedrop,harlo/securedrop,conorsch/securedrop,chadmiller/securedrop,jeann2013/securedrop,GabeIsman/securedrop,pwplus/securedrop,pwplus/securedrop,jrosco/securedrop,harlo/securedrop,kelcecil/securedrop,kelcecil/securedrop,GabeIsman/securedrop,harlo/securedrop,jrosco/securedrop,micahflee/securedrop,jeann2013/securedrop,pwplus/securedrop,jeann2013/securedrop,conorsch/securedrop,harlo/securedrop,jaseg/securedrop,heartsucker/securedrop,garrettr/securedrop,ehartsuyker/securedrop,pwplus/securedrop,ehartsuyker/securedrop,chadmiller/securedrop,micahflee/securedrop,ageis/securedrop,ehartsuyker/securedrop,GabeIsman/securedrop,kelcecil/securedrop,conorsch/securedrop,jeann2013/securedrop,jeann2013/securedrop,ageis/securedrop,heartsucker/securedrop,jrosco/securedrop,ehartsuyker/securedrop,GabeIsman/securedrop,jrosco/securedrop,harlo/securedrop,kelcecil/securedrop,ageis/securedrop,harlo/securedrop,chadmiller/securedrop,garrettr/securedrop,ehartsuyker/securedrop,heartsucker/securedrop,jeann2013/securedrop,conorsch/securedrop,jrosco/securedrop