diff --git a/Python/atof.c b/Python/atof.c
index 8fbde38..562fcd6 100644
--- a/Python/atof.c
+++ b/Python/atof.c
@@ -10,41 +10,41 @@
 
 double atof(char *s)
 {
-	double a = 0.0;
-	int e = 0;
-	int c;
-	while ((c = *s++) != '\0' && isdigit(c)) {
-		a = a*10.0 + (c - '0');
-	}
-	if (c == '.') {
-		while ((c = *s++) != '\0' && isdigit(c)) {
-			a = a*10.0 + (c - '0');
-			e = e-1;
-		}
-	}
-	if (c == 'e' || c == 'E') {
-		int sign = 1;
-		int i = 0;
-		c = *s++;
-		if (c == '+')
-			c = *s++;
-		else if (c == '-') {
-			c = *s++;
-			sign = -1;
-		}
-		while (isdigit(c)) {
-			i = i*10 + (c - '0');
-			c = *s++;
-		}
-		e += i*sign;
-	}
-	while (e > 0) {
-		a *= 10.0;
-		e--;
-	}
-	while (e < 0) {
-		a *= 0.1;
-		e++;
-	}
-	return a;
+    double a = 0.0;
+    int e = 0;
+    int c;
+    while ((c = *s++) != '\0' && isdigit(c)) {
+        a = a*10.0 + (c - '0');
+    }
+    if (c == '.') {
+        while ((c = *s++) != '\0' && isdigit(c)) {
+            a = a*10.0 + (c - '0');
+            e = e-1;
+        }
+    }
+    if (c == 'e' || c == 'E') {
+        int sign = 1;
+        int i = 0;
+        c = *s++;
+        if (c == '+')
+            c = *s++;
+        else if (c == '-') {
+            c = *s++;
+            sign = -1;
+        }
+        while (isdigit(c)) {
+            i = i*10 + (c - '0');
+            c = *s++;
+        }
+        e += i*sign;
+    }
+    while (e > 0) {
+        a *= 10.0;
+        e--;
+    }
+    while (e < 0) {
+        a *= 0.1;
+        e++;
+    }
+    return a;
 }