remove zip dependency by replacing it with the zipfile module which is included in python

Signed-off-by: Mattias Andrée <maandree@operamail.com>

README.md

@@ -90,8 +90,6 @@ Dependencies
 
 ### Package building dependencies
 
-`zip`: used to create one executable with all sources
-
 `gzip`: used for compressing manuals (suppressable with `./configure --without-info-compression --without-man-compression`)
 
 `texinfo`: used for building info manual (suppressable with `./configure --without-info`)

dependency-test.sh

@@ -14,7 +14,6 @@ pv=0 # python version
 
 
 (hash chmod        2>/dev/null) || (br=1 ; ro=1 ; echo 'Missing chmod, install coreutils [build+runtime required]')
-(hash zip          2>/dev/null) || (br=1 ;        echo 'Missing zip, install zip [build required]')
 
 (hash gzip         2>/dev/null) || (bo=1 ;        echo 'Missing gzip, install gzip [build optional]')
 (hash makeinfo     2>/dev/null) || (bo=1 ;        echo 'Missing makeinfo, install texinfo [build optional]')

manuals/ponysay.texinfo

@@ -1667,12 +1667,6 @@ the file name) in addition to .pony-files or pony names.
 @pindex @command{python3}
 Required to run the @file{./setup.py} file, which is also invoked from the
 make script.
-@item zip
-@pindex @command{zip}
-Required to create an executable containing all Pythons files. This is done by
-creating an (uncompressed) zip-file with all source files and prepended with
-a shebang telling the operating system to run Python 3, and naming the mane
-file @file{__main__.py}.
 @item gzip
 @pindex @command{gzip}
 Used for compressing manuals. (Optional, standard)

setup.py

@@ -4,6 +4,7 @@
 import os
 import shutil
 import sys
+from zipfile import ZipFile
 from subprocess import Popen, PIPE
 
 
@@ -430,9 +431,10 @@ class Setup():
                     if filein  is not None:  filein .close()
             try:
                 os.chdir('src')
-                cmd = 'zip -0 ../ponysay.zip ' + ' '.join(ponysaysrc) # use not compress, prefer speed
-                print(cmd)
-                os.system(cmd)
+                print('Creating uncompressed zip file ponysay.zip with files from src: ' + ' '.join(ponysaysrc))
+                with ZipFile('../ponysay.zip', 'w') as myzip:
+                    for src in ponysaysrc:
+                        myzip.write(src)
             finally:
                 os.chdir('..')
             os.chmod('ponysay.zip', 0o755)