utils/: remove numpy as a dependency

utils/Dockerfile

@@ -11,15 +11,15 @@ ENV PYTHONUNBUFFERED=1
 
 RUN     PIP="pip --no-cache install"					\
         APK_ADD="apk add --no-cache";					\
-        $APK_ADD --virtual .build-deps gcc g++ python3-dev		\
+        $APK_ADD --virtual .build-deps gcc python3-dev			\
 				libffi-dev musl-dev make		\
-     && $APK_ADD git libsodium-dev libsecp256k1-dev gmp-dev		\
+     && $APK_ADD libsodium-dev libsecp256k1-dev gmp-dev			\
      && $APK_ADD zeromq-dev						\
      && $PIP install base58 pynacl					\
      && $PIP install pytezos requests					\
-     && $PIP install pyblake2 pysodium numpy flask \
+     && $PIP install pyblake2 pysodium flask \
      && $PIP install -e 'git+https://github.com/vbuterin/pybitcointools.git@aeb0a2bbb8bbfe421432d776c649650eaeb882a5#egg=bitcoin' \
-     && apk del .build-deps git \
+     && apk del .build-deps \
      && $APK_ADD jq netcat-openbsd curl binutils \
      && $APK_ADD lz4
 

utils/faucet-gen.py

@@ -20,7 +20,6 @@
 import json
 import bitcoin
 import binascii
-import numpy as np
 import pysodium
 from pyblake2 import blake2b
 import unicodedata
@@ -71,8 +70,8 @@ def genesis_commitments(wallets, blind):
 def make_dummy_wallets(n, blind):
     # Not a realistic shape, but for an alphanet faucet it's better to
     # have less variance.
-    amounts = np.random.pareto(10.0, n)
-    amounts = amounts / sum(amounts) * 700e6
+    amounts = [ random.paretovariate(10.0) - 1 for i in range(n) ]
+    amounts = [ i / sum(amounts) * 700e6 for i in amounts ]
     wallets = {}
     secrets = {}
     for i in range(0, n):
@@ -103,9 +102,6 @@ def make_dummy_wallets(n, blind):
     blind = args.seed.encode('utf-8')
     # initialize random functions for determinism
     random.seed(a=blind, version=2)
-    numpy_seed = random.randint(0,2**32)
-    print("numpy seed is %s" % numpy_seed)
-    np.random.seed(seed=numpy_seed)
     wallets, secrets = make_dummy_wallets(args.number_of_accounts, blind)
 
     commitments = genesis_commitments(wallets, blind)